Speakers who support their assertions by citing firsthand experience​

A) Are rated higher in trustworthiness. 
B) Don't have to do as much research. 
C) Are more highly motivated.
D) ​Are more likely to provide good eye contact. 

Firsthand Experience

Direct exposure or engagement with events or situations, gaining knowledge or skills from being personally involved.

Assertions

Statements that declare or affirm something to be true, often used as a basis of argument or evidence in discussions.

Trustworthiness

The quality of being reliable, honest, and dependable, often considered essential in building and maintaining strong interpersonal relationships.