11. (10 points) The figure below shows the game "The Cunning Rabbit and Three Caves". In the game, there are only two pieces: one is the "hunter", and the other is the "cunning rabbit". Their positions are as shown in the figure. The north end $X$ is a flying point, which means any piece can "fly" over $X$, i.e., from $C$ directly to $D$, or from $D$ directly to $C$. The game starts with the "hunter" making the first move, followed by alternating moves. Each move can only be along the black lines to an adjacent point. When the hunter and the rabbit are on the same point, the hunter can catch the rabbit. Therefore, the "hunter" needs at least ( ) steps to catch the rabbit.
A. 5
B. 6
C. 7
D. 8
【Answer】Solution:
The hunter takes the first step upwards, and the first three steps form a loop upwards, at this point the hunter is on the hollow point, and the rabbit is on the solid point. If the rabbit is in position 1, the hunter can catch the rabbit in the 4th step. If the rabbit is in position 2, the hunter can catch the rabbit in at most 3 more steps, ultimately catching the rabbit by the 6th step.

Therefore, the answer is: B.