We need to _ courage and speak against wrongdoings in our society.

Explanation

Correct Answer: a. Muster - Explanation: The correct answer is 'muster,' which means to gather courage or strength. - Why other options are not correct: - b. Collect: Collect courage is not as idiomatic as "muster courage." - c. Put together: Put together courage does not convey the sense of gathering strength in the context. - d. Construct: Construct courage is not appropriate in the context of describing the gathering of courage.