In a family, there are three generations: Grandfather G, his son S, and his daughter D. S has two children, A and B. If A is a doctor and B is a lawyer, what is D's relationship to A?

A. AUNT

Four friends, John, Mike, Sarah, and Lisa, have different heights. John is taller than Mike but shorter than Sarah. Lisa is the shortest. Who is the tallest?

C. SARAH

A, B, C, D, and E are five students. A is older than B but younger than C. D is older than E but younger than A. Who is the youngest?

B. B

In a competition, Rachel finished before Sam but after Tina. Mark finished after Sam. Who finished last?

D. MARK

A book club is selecting members based on the following conditions: members must have read at least three books in the last year and must be over 18 years old. Emma has read five books and is 20, Liam has read two books and is 19, and Noah has read four books but is 17. Who can join the book club?

A. EMMA ONLY