Select the most more appropriate option to fill in the blank.
His opinion______ with the general opinion of the experts on this matter.

concurs

The most appropriate option to fill in the blank is concurs.

The word "concurs" means to agree or to be in agreement. In this context, it is the most accurate word to describe how the man's opinion matches the general opinion of the experts on the matter. The man's opinion does not tally, assimilate, or assert with the general opinion of the experts. It concurs with it.

The other options are not as appropriate.

• Tally means to add up or to come to the same total. It is not the best word to describe how the man's opinion matches the general opinion of the experts because it does not capture the sense of agreement.
• Assimilate means to absorb or to take in something new. It is not the best word to describe how the man's opinion matches the general opinion of the experts because it does not capture the sense of agreement.
• Assert means to state something strongly or confidently. It is not the best word to describe how the man's opinion matches the general opinion of the experts because it does not capture the sense of agreement.