Taking the time to ask others how they are doing can be as important as:

The correct answer is - listening to them.

Explanation:

Social health is the ability of an individual to relate to and communicate with others. Asking others how are they doing or how are they help in improving trust, care and develop social health in the society.  

Asking someone how is he doing is equally important as listening to them which makes them feel they really care and can empathizing helps in relating to them.

Thus, the correct answer is - listening to them.