Which of the following organism has flame cells for excretion?

Q. Which of the following organism has flame cells for excretion?
A. Flatworms
B. Roundworms
C. Hookworms
D. Pinworms
Answer: Flatworms

A. Flatworms
B. Roundworms
C. Hookworms
D. Pinworms
Answer: Flatworms