What os adjective and define it's kinds

What kind of word is the pronoun in bold letters? the car will be yours when you pay your last car payment.

Which sentence best build the suspense

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