When Sandra Was Negotiating with Jamal, She Looked Him in the Eye

When Sandra was negotiating with Jamal, she looked him in the eye and shook his hand firmly. Jamal felt uncomfortable and didn't entirely trust Sandra after that, although he could not actually articulate why. This is likely because cultural differences in nonverbal behaviors

A) are almost always hidden below our awareness.
B) were not important to Sandra.
C) only apply to social behaviors; business behaviors are universal.
D) are less important than verbal behaviors.
E) were not important to Jamal.