Step 1: Understanding the Question:
We must choose the phrase closest in meaning to "polemic".
Step 2: Key Formula or Approach:
Think of where the word "polemic" is normally heard, in debates, essays or speeches where someone argues strongly against an opposing view, then check which option keeps that sense of dispute.
Step 3: Detailed Explanation:
A polemicist writes or speaks to attack an idea or defend one with force, often stirring disagreement among readers or listeners.
"An indication" only means a sign, with no argument involved.
"A misunderstanding" describes confusion between people, not a deliberate line of reasoning.
"A complaint" voices dissatisfaction but does not require building a case for or against something.
"A contentious argument" keeps both the idea of dispute (contentious) and structured reasoning (argument), which is the essence of a polemic.
Step 4: Final Answer:
The word closest in meaning to "polemic" is "a contentious argument", so the answer is option (c).