The correct answer is option D, None of the choice.
Prokaryotes like Escherichia coli are used in drug production. Rhizobium bacteria (prokaryotes) in the soil, form symbiotic relationship with the roots of the plant to fix nitrogen. And prokaryotes are measured in terms of colony-forming units (CFU) of bacteria to produce nutritious yoghurt.
is the answer below correct? because i know the option "to synthesize drugs" is wrong.
The correct answer would be C - to form a symbiotic relationship and obtain ammonia.
why do you want to cheat? i dont take it, so i dont know.
some tips: get a tutor
a. to synthesize drugs