You Are Trying to Accumulate $2,000 at the End of 5

You are trying to accumulate $2,000 at the end of 5 years by contributing a fixed amount at the end of each year.You initially decide to contribute $300 per year but find that you are coming up short of the $2,000 goal.What could you do to increase the value of the investment at the end of year 5?

A) invest in an investment that has a lower rate of return.
B) invest in an investment that has a higher rate of return.
C) make a sixth year contribution.
D) contribute a smaller amount each year.