What is the feeding behaviors of a sea lily?

Diet: Orange sea lilies eat plankton. Behavior and reproduction: Orange sea lilies hide their crown during the day, only the arms and branches showing. The entire body may come out at night. The males release sperm and the females release eggs into the water, where they join.

Explanation:

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.

answer; autosomal;