Everyone testifies to the unique taste of our flavor.

Analyze the question: The italicised word is "unique". We need the option that is opposite in meaning.

Explain the concept: "Unique" means one of a kind, having no equal, or very special. Its antonym is something ordinary, widespread, or shared by many.

Go through the options:

• A. Offensive means causing displeasure or insult. It has nothing to do with being one of a kind.
• B. Common means ordinary and found everywhere. This is the direct opposite of "one of a kind."
• C. Uncommon means rare or unusual. This is actually a synonym of "unique", not an antonym. It is the trap in this question.
• D. Sufficient means enough. It is unrelated.

Solution: Substituting "common" gives: "Everyone testifies to the common taste of our flavor." This is the reverse of saying the taste is special and one of a kind. So the answer is **B.

Tip: In "opposite in meaning" questions, first find the synonym of the word, then eliminate it. Here "uncommon" is a synonym, so it can't be the antonym. Always check that you are answering the question asked (opposite or similar), because examiners place the synonym among the options on purpose.