I can’t figure out why the question is so created. Could any teacher tell me?

I can’t figure out why the question based on the following passage is so created. Could any teacher tell me?

Climbing takes strength, control and good balance. Climbers have to pull themselves straight up the face of very high rocks or walls. So they have to be strong enough to carry their own weight. And climbers sometimes have to hold on to rocks by only their fingers or toes.
There are several kinds of rock climbing. Traditional rock climbing is done outside. Climbers wear ropes and attach devices to the rocks as they climb many hundreds of meters up. They also connect their ropes to the devices. If a climber slips, a rope can stop him from falling.
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And then there is bouldering – climbing rocks between three and seven meters high. It is a quicker and more intense kind of climbing. Many climbers like bouldering because they can use less equipment. Climbers often need only special shoes and chalk. All climbers use chalk to keep their hands dry.

Question: You are experiencing danger in climbing if you ___.
a. pull yourself straight up the face of very high rocks or walls
b. hold on to rocks by only their fingers or toes
c. wear ropes and attach devices to the rocks
d. take special shoes and chalk

A. a, b B. a, c C. b,c D. c,d

Answer: A