Answer:
D. The plant reproduces asexually, and only one parent is required.
Step-by-step explanation:
Noriko's observation indicates that the new plant is reproducing through asexual reproduction, also known as vegetative reproduction. In this mode of reproduction, a single parent gives rise to genetically identical offspring without the involvement of gametes or fertilization. This is in contrast to sexual reproduction, in which two parents are required to produce genetically diverse offspring. Therefore, option D) "The plant reproduces asexually, and only one parent is required" is the correct statement about Noriko's find.