When tianna was asked to be the after-dinner speaker for the senior honors dinner, she responded with great enthusiasm. she viewed this as an opportunity to reflect on her time in college, bring a smile to her fellow seniors' faces, relay the excitement of the event, and them enjoy themselves. in this situation, tianna would be speaking to . inform2. entertain3. convince4. persuade

She'd be speaking to entertain.

Explanation:

At the ending, she say "bring a smile to her fellow seniors' faces, relay the excitement of the event, and help them enjoy themselves."

She said she viewed it as an opportunity to reflect on her time in college, which could mean she wants to CONVINCE of her knowledge, BUUUT

She also said, at the end, that she wants her seniors' to enjoy what they're doing, which means she wants to entertain.

Answer  :     we are calling by someone