Question

What is one main purpose of commentary?

It allows readers to form their own opinions on the topic.
It allows the writer to provide additional evidence on the topic.
It allows readers to generate additional questions about the topic.
It allows the writer to demonstrate their mastery of the topic.

Answer 1

It allows the writer to demonstrate their mastery of the topic.

Commentary is the writer’s explanation/analysis of evidence, showing understanding and interpretation rather than just presenting facts.