Answer:
Midpiece.
Step-by-step explanation:
Sperm is the male gamete or reproductive cell. Sperm cells are haploid cell that cannot divide further and fuse with the ova cell to produce a diploid zygote.
The human sperm is divided into three parts- head, midpiece and tail. The mitochondria is present in the midpiece of sperm cell. Mitochondria provide energy to the sperm cell.
Thus, the correct answer is option (B).