Read of the following statements:-
(a) Insect resistance in crop plants may be due to morphological, biochemical or playsiological characteristics.
(b) Hairy leaves in cotton are resistant to cereals jassids.
(c) Smooth leaves and nectar-less cotton varieties do not attract bollworms.
(d) In maize, high asparatic acids, low nitrogen and sugar leads to resistance to stemborers.
Choose correct statements :-

Options

A. a,c
B. a,b,c
C. a,c,d
D. a,b,c,d

Answer

D