The correct answer is: B. Tentative

The word "tentative" means "not certain or definite." It comes from the Latin word "tentare," which means "to try." The word "tentative" is often used to describe plans or decisions that are not yet final. For example, you might say that you have a "tentative plan" to go on vacation next summer, or that you are "tentative" about accepting a new job offer.

The other options are incorrect because they are not real words. The word "tentative" is spelled with one "t" and two "a"s. The word "tentaitive" is spelled with two "t"s and one "a." The word "tentitive" is spelled with one "t" and three "a"s. The word "tantitive" is spelled with two "t"s and three "i"s.

I hope this helps!