The correct answer is option B, that is, reproducing.
Reproduction refers to the biological procedure by which new organisms, that is, offspring get generate from their parents. Reproduction is a basic requirement of all the forms of life, every single organism prevails due to the outcome of reproduction. There are two modes of reproduction, that is, sexual and asexual.
It is the phenomenon of asexual reproduction, in which a single cell species splits in half and results in the formation of twice as many organisms as before.