Identify the sentence that correctly uses an apostrophe. A) Is that you're book or is it mine?
B) Bob's house was renovated last year.
C) The 90 pound dog wagged it's tail as I walked past it.
D) I needed to use the Ladie's Room, but I could not find it.

Which of the following factors most consistently contributes to the speaker’s believability? a the age and experience of the speaker b the physical environment in which the speech is delivered c the sincerity, knowledge, and trustworthiness of the speaker d the position of the thesis statement in the speech