Answer:
D. You tell the person that you meet that your parents are originally from Mississippi.
Explanation:
Self disclosure is a form of communication in which one individual reveal a personal information about her/himself to another individual. The 'Personal information' under this context is something that couldn't be known by other person who don't know you unless you tell them.
Pay attention to other options:
a) You tell the person you meet that you are getting bald
b) You tell the person you meet that you are nearly six feet tall
c) You tell the person you meet that you are African American
all these information can be obtained if other people just uses their senses to observe you for a while. But, other people would not be able to guess where your parents come from unless you told them to.
This is why the answer is D.