Biology

The correct answer is: B.A mutation that alters the structure or number of chromosomes.

Explanation:

A chromosomal mutation is a type of mutation that involves changes to the structure or number of chromosomes within an organism’s cells. This can include alterations such as duplications, deletions, inversions, or translocations of chromosome segments, as well as changes in chromosome number (such as aneuploidy, where there is an abnormal number of chromosomes).

Here’s a brief overview of why the other options are incorrect:

A.A mutation th...