Biology

The correct answer is B.prophase.

During prophase, the following key events occur:

1.Chromosomes become visible as they condense from chromatin into distinct structures.

2.Spindle fibers begin to form, originating from the centrioles, which are moving to opposite poles of the cell.

3.The nuclear membrane starts to break down.

Here’s a brief explanation of the other options:

A.Metaphase: This is when chromosomes align at the cell's equator,...