Question

select the part of the subject that agrees with the bold verb. candace flynn thinks that the lion with the large, golden eyes is extremely friendly.

Explanation:

In the sentence "Candace Flynn thinks that the lion with the large, golden eyes is extremely friendly", the verb "is" is a singular - form verb. The subject that agrees with it is the singular noun "lion". The prepositional phrase "with the large, golden eyes" is just a modifier for "lion".

Answer:

lion