Interphase used to be called the "resting stage" of the cell, why is this not a good name for this stage?

Explanation:

The three main phases of a single cell cycle are: interphase, nuclear division and cytoplasmic division. Originally this phase of the cell cycle was called the "resting stage", since light microscopy could not detect any activities taking place within the cells.

i think it’s c but i might be wrong. if i am let me know! have a good rest of your day as well!