Answer:
B) reading.
Explanation:
The options for this question are:
A) swimming
B) reading
C) climbing
D) dancing
Among these options, reading is an activity that doesn't have physical benefits, because to read we don't need to use muscles and put them under stressful situation in order to grow. When we read, we just use brain and eyes, that's it. Reading activities improve other areas related with the mind and knowledge, like thinking processes.
On the other hand, options A, C, and D, are actual physical activities that benefits the body.
