If a presenter uses a hostile tone of voice, what effect might this tone have on audience members?

If a presenter uses a hostile tone of voice, This effect won't be good on the audience members. This tone would have a really bad effect on the audience members. A presenter using a hostile (unfriendly) tone of voice will not be liked enough by the audience. So, It is better to use rather a friendly tone of voice.

the thesis statement : d

true. the definition explains it: a word or phrase that modifies or qualifies an adjective, verb, or other adverb or a word group, expressing a relation of place, time, circumstance, manner, cause, degree, etc. this is a dictionary definition that i have looked up in a dictionary.