Which of these statements is incorrect ?

Options

A. Some members like Planaria possess high regeneration capacity .
B. They are bilaterally symmetrical , triploblastic and acoelomate animals with organ level of organisation.
C. Their sexes are separate , fertilisation is internal and development is through many larval stages.
D. They have specialized cells called flame cells which help in osmoregulation and excretion.

Answer

C