Use the Following Information to Answer the Questions:
Suppose Kim

Multiple Choice

Use the following information to answer the Questions:
Suppose Kim and Chris want to take turns, using the bottom-up strategy, to allocate several textbooks currently held jointly. Their ranked preferences are listed below: $$\begin{array} { | l | l | l | l | l | l | l | } \hline & 1 ^ { \text {st } } & 2 ^ { \text {nd } } & 3 ^ { \text {nd } } & 4 ^ { \text {th } } & 5 ^ { \text {th } } & 6 ^ { \text {th } } \\\hline \text { Chris } & \text { botany } & \text { sociology } & \text { physiology } & \text { biology } & \text { ecology } & \text { chemistry } \\\hline \text { Kim } & \text { biology } & \text { chemistry } & \text { botany } & \text { sociology } & \text { ecology } & \text { physiology } \\\hline\end{array}$$
-If Kim chooses first, when is the ecology book chosen?

A) It is Chris's second choice.
B) It is Chris's third choice.
C) It is Kim's second choice.
D) It is Kim's third choice.