Which One of the Following Statements Is Correct

Which one of the following statements is correct?

A) Two primary reasons why a company holds cash are seasonal fluctuations and short-term investments.
B) Banks are prohibited from investing cash surpluses on behalf of their customers on a short- term basis.
C) Short-term securities tend to have a high degree of interest rate risk.
D) The money market refers to securities that mature in one year or less.
E) Corporations are not permitted to invest in money market mutual funds but can invest in bank money market accounts.