Meaning: 'Praise' means to express admiration or approval for someone or something, in this case, the beneficial effects of sweeteners.

Wrong options:

• arise: Arise means to come into being or to happen, which does not fit the context of expressing approval.
• raise: Raise typically refers to lifting something or increasing it, which does not apply to the context of headlines about health benefits.
• appraise: Appraise means to assess the value or quality of something, which does not convey the sentiment of approval needed in this context.

Correct answer: with

Explanation: The preposition 'with' correctly indicates the relationship of replacing sugary drinks with diet versions, fitting grammatically and contextually into the sentence.

Meaning: 'With' indicates accompaniment or association, meaning that people are replacing sugary drinks alongside similar-tasting diet versions.

Wrong options:

• without: Without implies the absence of something, which contradicts the idea of replacing drinks with diet versions.
• about: About indicates a topic or subject, which does not fit the context of replacement in this sentence.
• against: Against suggests opposition, which does not align with the idea of substituting one item for another.

Correct answer: association

Explanation: The word 'association' fits grammatically as a noun that describes a connection or relationship, which is appropriate in the context of discussing findings from a study about sweeteners and health risks.

Meaning: 'Association' refers to a relationship or connection between two or more things, in this case, sweeteners and health risks.

Wrong options:

• experimentation: Experimentation refers to the process of conducting experiments, which does not fit the context of a study's findings about health risks.
• acclimatization: Acclimatization means the process of becoming accustomed to a new environment, which is unrelated to the context of health studies.
• indemnification: Indemnification refers to compensation for harm or loss, which does not apply to the context of health associations.

Correct answer: shedding

Explanation: The word 'shedding' fits grammatically as a gerund that indicates the act of revealing or making something known, which aligns with the context of illuminating the topic of artificial sweeteners.

Meaning: 'Shedding' means to reveal or make something visible, in this case, the insights into the effects of artificial sweeteners.

Wrong options:

• descending: Descending means moving downwards, which does not fit the context of revealing or illuminating information.
• embedding: Embedding refers to incorporating something within something else, which does not convey the act of revealing insights.
• sledding: Sledding refers to the activity of riding on a sled, which is completely unrelated to the context of scientific research.