Primary consumers and secondary consumers belongs to which trophic level respectively.

Options

A. `{:(,"Primary consumers","Secondary consumers"),((a),"Trophic level - II","Trophic level - III"):}`
B. `{:(,"Primary consumers","Secondary consumers"),((b),"Trophic level - I","Trophic level - II"):}`
C. `{:(,"Primary consumers","Secondary consumers"),((c),"Trophic level - II","Trophic level - I"):}`
D. `{:(,"Primary consumers","Secondary consumers"),((d),"Trophic level - III","Trophic level - II"):}`

Answer

A