The correct option is B mitosis
Asexual reproduction is a type of reproduction which does not involve the fusion of gametes. Zoospores are flagellated motile spores formed by asexual reproduction. They germinate to form algae. The zoospores are produced inside the cells called zoosporangia through mitosis. Mitosis is the cell division where the number of chromosomes in the daughter cell is the same as the parent cell. Zoospores are released from the zoosporangia and upon germination give rise to new plants.
Meiosis is the cell division in which the number of chromosomes in the daughter cells reduce by half from its parent cell.
Fragmentation is a method of asexual reproduction where one fragment from an organism's body is broken due to external physical causes.
Budding is a type of asexual reproduction in which an organism develops from an outgrowth or bud as the cellular division takes place at one site.