Twain pokes fun at small town life many times in the novel, but he also shows an innocent side to it that makes it appealing
B. Whose.
Whose laptop was left at the library?
WHOSE is the possessive pronoun of who. It is a determinant on who an object belongs to.
Who's is a contraction of "who is" or "who has".
Their are variety of different species in the tropical rain forest.
.....................................................