Answer:
(C) The security has a maturity that takes place within the next year.
Step-by-step explanation:
A liquid investment is an investment that can be easily and swiftly converted into cash. Cash is the most liquid asset, but it also yields virtually no returns. Generally, the more liquid an investment, the lower returns it tends to yield.
In this particular case, the investor is worried about the liquidity of the investment, so the RR must look for securities that mature in a short period of time. Only option C makes any reference to maturity time, and since these municipal bonds mature within the next year, they are short term investments.