Asexual reproduction is where offspring arises from a single organism. So, in no way, can a human reproduction system, which is sexual reproduction, be involved in asexual reproduction.
You're answer would be D, none of the above. <span />
The answer is D but remember, asexual reproduction refers to replicating the genetic DNA. If a sperm and egg cell were to fuse to form a zygote, there would be DNA from the mother (egg cell) and father (sperm cell), creating varying combinations. However, asexual reproduction creates offspring that are copies of each other. This is why none of the factors listed above are involved with asexual reproduction.
The answer would be letter A. globular cluster. This group of very old stars that are clustered together in a spherical in shape and can contain from 10,000 to several million is called a globular cluster. In our galaxy, there are 150 globular clusters.