Question

______________ lend expert support to your arguments and provide additional witnesses to give credibility to your speech.

Answer 1

The Answer is C. Testimonies

Step-by-step explanation:

I barely just took the quiz on edge.

Answer 2

I would say that the word "Testimonies" or "Testimonials" could fit in the blank. A testimonial is when someone discusses how your product, or argument is beneficial or correct.