Answer :
Answer: Option B, In through the pores and out through the osculum
Explanation:
Sponges are poriferans which live in the location which are permanently located near water. The water in the body of sponges flows so that it can get the proper food for themselves.
The water flows through the cells of the body These are known as pores ( also called as porocytes) which is found in all over the body of the sponges.
The water after flowing in the whole body comes out of the oscula. These large openings are known are osculum.
