The correct answer is C. Majority agreement
Step-by-step explanation:
In a sentence, the meaning of a word can be inferred based on the context provided by other words. In the case of the sentence presented the word "consensus" is defined through the idea "majority agreement in matters of opinions" that is separated from the main sentence using an em dash (—) which is a punctuation mark that is used for adding examples, explanations or remarks. This means the word consensus in the sentence refers to having the general approval or people or the "majority agreement".