Answer:
C. Sensitive
Explanation:
I'm not really sure of a way to explain this in a way that makes sense, but I'll try my best. The definition of sensible is "A person or person's behavior having or displaying a quick and delicate appreciation of others' feelings." If someone was overreacting to a joke that someone made, they could be considered an overly sensitive person. Hence, the phrase "Don't be so sensitive, he was only joking" would make the most sense.
