I believe that the correct answer would be : Different types of organisms have different numbers of chromosomes.
I hope that this helps you !
A is the answer because that is how we should understand the poetic words used by the author as it does not need to be in the dictionary
Just think about cancer.. it's uncontrolled cell growth, so mutations in genes can cause cancer by accelerating cell division. As the cells contribute to grow they then develop as a tumor.
