If you wanted to buy an aquarium with only benthos in it which of the following would you buy

Explanation:

"The principal food sources for the benthos are plankton and organic debris from land. In shallow water, larger algae are important, and, where light reaches the bottom, benthic photosynthesizing diatoms are also a significant food source."

trigonal pyramidal

tetrahedral

trigonal planar

bent

i think that the answer is c