1. A person who is very talkative and sociable is demonstrating a high degree of a. conscientiousness. b. agreeableness. c. extroversion. d. emotional stability.​

C.

Explanation:

And I quote from the almighty dictionary, " Extroversion is characterized by sociability, talkativeness, assertiveness, and excitability. People who are high in extroversion tend to seek out social stimulation and opportunities to engage with others. These individuals are often described as being full of life, energy, and positivity. "

Hello There!!

Explanation:

I believe the answer is a)conscientiousness.

hope this helps,have a great day!!

~Pinky~

d is the answer hope this