The correct option is
A fragmentation
The correct option is A.
Explanation of the correct option.
- Fragmentation is a type of asexual reproduction in which a filamentous body gives rise to new individuals after breaking into fragments.
- Spirogyra is the green filamentous algae that show fragmentation as the asexual mode of reproduction.
Explanation of the incorrect options.
Option B:
- Budding is an asexual reproduction in which the bud formed on the parent body gives rise to a new individual.
- Budding is observed in yeast and Hydra.
Option C:
Spores are involved in the method of sporulation that occurs in a fungus named Rhizopus.
Option D:
- Fission is a type of asexual reproduction in which the parent body divides to form new daughter cells.
- Fission is of two types; binary and multiple.
- Binary fission is observed in Amoeba.
- Multiple fission is observed in Plasmodium.
The type of reproduction in spirogyra is fragmentation.