The source of implied powers under the u. s. constitution is the clause.

It seems that you have missed the necessary options for us to answer this question so I had to look for it. Anyway,here is the answer. The source of implied powers under the U.S. constitution is the NECESSARY AND POWER clause. Hope this answers your question.

D. is righta is wrong because consumers can be carnivores and omnivores not just herbivoresb is wrong because producers are plantsc is wrong because producers are plantsso d is righthope this !

Yeah u should that's the right thing