In order to check your own understanding during a discussion, it is a good
idea to:
a. ask verifying questions.
b. repeat your main point regularly.
c. take a break to write notes.
d. refer to a reliable source, such as the internet.

A). Ask verifying questions.

Explanation:

As per the question, 'asking verifying questions' would be a significant idea to test one's own understanding of the concepts during a discussion as these questions would assist in remembering the points associated with the concept more easily and effectively. These questions would check that how successfully one has understood the concepts which were discussed during the discussion and the efficacy in answering these questions would also reveal their individual interests and learning ability. In an attempt to answer these questions, the individual is able to regularly reiterate the ideas discussed that would promote the ability to make reference. Thus, option A is the correct answer.

"freedom of speech, freedom of worship, freedom from want, and freedom from fear.

the four freedoms were goals articulated by united states president franklin d. roosevelt on january 6, 1941"

op: object of preposition