How can we improve our social supports? how can we provide social support to others?

The answers are: we can improve our social supports when we are proactive and look for someone to help. Technology is also a good source to improve on the grounds that it is the easiest way to find someone who is willing to make a good social supporter. And we can provide social support to others when we are always willing and available to do it.

about the letter or who wrote the letter

i believe the answer is d