Why do cells perform mitosis?

a. asexual reproduction
b. replacement
c. growth
d. all of these

I’m pretty sure it’s B because they need to be able to replace other cells when they die off but its also to maintain a healthy size so if they are growing too much they may need to split

I think it’s D because they do grow and asexual reproduction involves in there and they do replace the dead cells with the new.