(N/A) Crops that have been modified to obtain desirable traits by introducing a gene that controls the desired characteristics are called genetically modified crops.
$(b)$ Tallness and profuse branching are desirable characters for fodder crops. Dwarfness is desired in cereals so that fewer nutrients are consumed by these crops,leading to higher grain production.
$(c)$ To ensure modern agricultural technology is adopted by most farmers:
$(i)$ Spread awareness through seminars conducted by agricultural scientists regarding the benefits of modern technology.
$(ii)$ Provide easy access and subsidies for the use of $HYV$ (High Yielding Varieties) seeds.
$(iii)$ Promote sustainable development by utilizing natural resources in a judicious manner,avoiding overexploitation,and preventing environmental pollution.