Studying how people get along with one another
a. has little use outside the workplace
b. can improve a person's personal life.
c. for most people is a difficult thing to do.
d. won't a worker become more productive.

The question were asking to choose among the following choices that states on how people get along with on another and base on my study about this and on my further research, I would say that the answer is  letter B. can improve a person's personal life. I hope this would help

Iwould put 'think' in the blank