Which of the following short$-$term goals is stated most clearly using the SMART approach?

Question $12$Answer

a$.$

Invest $$50$ per month for the next $12$ years for my nephew's college fund.

b$.$

Within the next $6$ months, buy a car for less than $$18,000.$

c$.$

Purchase a house with a mortgage no greater than $$200,000$ within $5$ years.

d$.$

Retire in $10$ years at age $65$ with $$2,000,000$ in my $401($k$)$ account.