Which sentence is the most correct, clear, and concise?
select one:
a. in order to achieve a life that is both successful and rewarding, individuals must focus on developing one set of skills that they can sell and many outside interests.
b. in order to live a life that is both successful and rewarding, one must develop a particular skill that is in demand by the marketplace and diverse outside interests to amuse one throughout life.
c. for a successful, rewarding life, an individual must develop a marketable skill and diverse interests.
d. to have a successful, rewarding life, individuals must develop particular, marketable skills, and they also must explore diverse interests.