The correct options are
A Cotton – Hairy leaves
B Wheat – Solid stems
C Maize – Low sugar
Insect resistance in host crop plants may be due to morphological, biochemical or physiological characteristics. Hairy leaves in cotton provide resistance to jassids. Wheat also exhibits a similar mechanism. Solid stems in wheat provide resistance to stem sawfly. High aspartic acid, low nitrogen and low sugar content in maize resist stem borers.