Meaning: To 'nurture' means to support and encourage the development of something, in this case, innovation.

Wrong options:

• discard: The word 'discard' means to throw away or get rid of, which contradicts the intention of promoting innovation.
• undermine: 'Undermine' means to weaken or damage something, which is opposite to the goal of fostering innovation.
• ignore: The term 'ignore' means to pay no attention to something, which does not align with the proactive approach of encouraging innovation.

Correct answer: diversify

Explanation: The word 'diversify' is appropriate as it suggests broadening our approach, which is contextually relevant when discussing strategies to tackle challenges and opportunities. It fits grammatically as a verb that complements the structure of the sentence.

Meaning: To 'diversify' means to make or become more varied or diverse, particularly in approaches or methods.

Wrong options:

• simplify: The word 'simplify' means to make something easier or less complex, which does not align with the idea of expanding our approach.
• limit: 'Limit' implies restricting or reducing, which contradicts the goal of expanding our strategies.
• narrow: The term 'narrow' suggests a reduction in scope, which is not suitable in the context of enhancing our approach.

Correct answer: block out

Explanation: The phrase 'block out' is suitable as it means to set aside time and prevent other commitments from interfering, which is contextually appropriate for ensuring attendance at the workshop. It fits grammatically as a phrasal verb that conveys the intended action clearly.

Meaning: To 'block out' means to reserve time in your schedule so that you are not distracted or interrupted by other activities.

Wrong options:

• free up: The phrase 'free up' means to make time available, which does not convey the same urgency or commitment as 'block out.'
• open: The word 'open' does not fit grammatically in this context, as it does not convey the action of reserving time.
• clear: The term 'clear' implies removing obstacles but does not specifically indicate the action of reserving time for the workshop.

Correct answer: initiate

Explanation: The word 'initiate' is appropriate as it means to start or begin something, which aligns with the context of launching new brainstorming sessions. It fits grammatically as a verb that complements the overall intent of the sentence.

Meaning: To 'initiate' means to start or set something in motion, particularly in the context of new activities or processes.

Wrong options:

• halt: The word 'halt' means to stop or cease, which is contrary to the intention of starting new sessions.
• conclude: 'Conclude' implies finishing or bringing something to an end, which does not match the goal of beginning new brainstorming sessions.
• reverse: The term 'reverse' means to go back or undo something, which is not relevant in the context of initiating new activities.