Answer:

Well, you can take the example of different genres of music. One person might like pop while others might be more interested in country, jazz, hip hop etc. So, what seems good for one might not seem good for others due to their tastes in different things.

Your teacher most likely means that the answer is reasonable but not the best. Technically they are correct.
A (rope descent system) is defined as a suspension system that allows a worker to descend in a controlled manner and, as needed, to stop at any point to perform work.