Meaning: 'Labels' are tags or stickers that provide information about the contents or destination of a package.

Wrong options:

• brushes: 'Brushes' are tools used for painting or cleaning, which do not relate to shipping envelopes and are irrelevant in this context.
• scissors: 'Scissors' are tools for cutting, but they do not fit as they are not something that needs to be removed from the envelopes.
• process: 'Process' refers to a series of actions or steps taken to achieve a particular end, which does not fit as it does not refer to a physical item that can be removed.
• cables: 'Cables' are wires used for electrical connections, which are unrelated to shipping envelopes and do not fit the context.
• prices: 'Prices' refer to the cost of items, which is not relevant to the action of removing something from shipping envelopes.

Correct answer: process

Explanation: The term 'process' is appropriate as it refers to the method or series of actions involved in recycling. It fits grammatically as a noun and contextually as it describes the recycling procedure that could be hindered by leftover labels.

Meaning: 'Process' refers to a series of actions or steps taken to achieve a particular outcome, in this case, recycling.

Wrong options:

• labels: 'Labels' do not fit here as they refer to the items that need to be removed, not the method of recycling.
• brushes: 'Brushes' are tools and do not relate to the recycling method, making them irrelevant in this context.
• scissors: 'Scissors' are tools for cutting and do not describe a method or procedure, thus they do not fit.
• cables: 'Cables' are unrelated to recycling processes and do not fit the context of the sentence.
• prices: 'Prices' refer to costs and do not relate to the recycling process, making them an inappropriate choice.

Correct answer: scissors

Explanation: The word 'scissors' fits grammatically as a plural noun that refers to the tool used for cutting. Contextually, it is appropriate as it describes the means by which one can remove labels that do not peel off easily.

Meaning: 'Scissors' are a cutting tool used to cut paper or other materials.

Wrong options:

• labels: 'Labels' do not fit as they refer to the items being removed, not a tool for cutting.
• brushes: 'Brushes' are tools for painting or cleaning and are not suitable for cutting labels off.
• process: 'Process' refers to a series of actions and does not relate to a physical tool for cutting, making it irrelevant here.
• cables: 'Cables' are wires and do not serve as a cutting tool, thus they do not fit the context.
• prices: 'Prices' refer to costs and are unrelated to the action of cutting, making them an inappropriate choice.