Answer:
B. Some Romans thought very highly of their emperor.
Step-by-step explanation:
Action verbs, or dynamic verbs, are those that a person, animal or object can do physically or mentally. Option B contains an action verb because the verb "thought" expresses a mental action performed by someone: "Some Romans."
Other examples of verbs that express mental or physical actions are to smell, to eat, to swim, to throw, to paint, to whisper, to ride, to believe, to walk and to read.