The investing principle Holly should have followed was:
D.Consider how long you plan to keep your money in the investment.
Explanation:
The reason behind the answer is that maybe she didn't know that she was going to be penalized when she made her investment. Also, she could have just believed she was not going to need te money and now she needs it. But it is really important to know this because it affects your profit. Therefore, knowing the time you are going to keep that money invested and maintain it there is a basic rule. It is said that you can only invest the money you are not going to need.
