Sentence Correction (SC) | Re: Because they can reproduce several times each year and produce large

Tip :-

Always remember: whenever you have to chose between "because of" and "due to", replace "due to" by "caused by". If the sentence still makes sense, then it is correct else wrong. And yes, "capability to" is wrong here.

In B, "ability of reproducing" is unidiomatic.
INCORRECT: ability of doing X.
CORRECT: ability TO DO X.
Other errors in B:
"because" and "thus" are redundant.
Generally, COMMA + along with
...

---