If a certain coin is flipped, the probability that the coin will land heads is 1/2. If the coin is flipped 5 times, what is the probability that it will land heads up on the first flip but not on the last 4 flips? Choose the correct choice from the following answers
A) 1 / 4
B) 1 / 8
C) 1 / 16
D) 1 / 32
E) 1 / 64

Rationale: "p ( htttt ) = 1 / 2 * 1 / 2 * 1 / 2 * 1 / 2 * 1 / 2 = 1 / 32 the answer is d ."
Answer: D