Concept:Equivocate means to use ambiguous or evasive language to avoid telling the whole truth.
Explanation:The word Equivocate refers to intentionally unclear or vague speech.
A person who equivocates hides the truth behind carefully chosen words.
This makes the statement misleading without being an outright lie.
Option D directly matches this exact meaning.
The other options describe fairness or changing sides, not evasiveness.
Hence, option D is the most accurate choice.
Answer:The correct answer is option D: "To use vague language to conceal the truth."