Primary Producers fall in two categories e.g.

A. Indigotrops and Xylotrops

B. Numerotrops

C. Xylotrops

D. Phototrophs and Chemotrophs

Answer: Option D

Solution(By Examveda Team)

Phototrophs and chemotrophs are two types of nutritional groups found in the environment. Most phototrophs are autotrophs, using the energy from sunlight to produce their food. Chemotrophs oxidize inorganic compounds or organic compounds as their energy source. They are the primary producers of food chains.