Fill up the blanks and select the correct option from the codes given below.
A. ___(i)___ is decomposed mixture of cattle excreta and urine along with straw and fodder.
B. ___(ii)___ is made from vegetable wastes and animal wastes decomposed by aerobic and anaerobic microorganisms.
C. ___(iii)___ is prepared by sowing certain crop seeds and then ploughing them back in the soil.
D. ___(iv)___ is made by decomposition of plant and animal refuse with the help of earthworms.

Answer

B