Which could be the primary source of energy in a food web?
a. fungus
b. praying mantis
c. raccoon
d. clover

The correct answer should be D. clover. That's because it's an energy produced because it's an autotroph. It's primary meaning that it produces the energy and others who eat it take the energy. This includes us too but we can also get it from eating animals who eat the clovers. This is how energy is transferred.

Iam not sure but to me it with be a or dsorry if i was late! hope this ! : )if you really want me to find out the answer that is correct tell me and i will do more research but the a or d makes sense to me.