In a family, A is the father of B and C. B is married to D, and they have a son E. If C is a teacher and D is a doctor, what is E's relationship to A?

A. GRANDSON

Among four cars A, B, C, and D, A is faster than B but slower than C. D is the slowest. Which car is the fastest?

C. C

In a race, five runners A, B, C, D, and E finish in the following order: A finishes before B but after C. D finishes before E but after B. What is the correct order of finishers?

A. C, A, B, D, E

There are four animals: a dog, a cat, a rabbit, and a parrot. The dog is not a mammal, the cat is a mammal, the rabbit is a mammal, and the parrot is a bird. Which of the following statements is true?

B. ONLY THE CAT AND RABBIT ARE MAMMALS

Five tasks P, Q, R, S, and T need to be completed. Task P must be done before Q and R. Task S must be done after R but before T. What is the correct sequence of tasks?

A. P, R, Q, S, T