Correct Answer: Dissent

Solution : The correct antonym for "consent" is the first option.

Explanation: The word consent refers to giving permission, agreement, or approval. To find the antonym, we look for a word that denotes disagreement or opposition. Among the given options, dissent is the most appropriate antonym for consent. Dissent refers to expressing a differing opinion, disagreement, or refusal to agree with the majority.

The meaning of the other options is as follows:

• Variety: The quality or state of being different or diverse.
• Integrity: The quality of being honest and having strong moral principles.
• Sanction: It either means official authorisation by a legal authority or penalties and punishments imposed for non-compliance with laws