Statement I. Two of the straight lines represented by `dx^3+cx^2y+bxy^2+ay^3=0` will be at right angles if `d^2+bd+bc +a^2 =0`
Statement II. Product of the slopes of two perpendicular line is -1

Options

A. Statement I is true, Statement II is true , Statement II is a correct explanation for Statement I
B. Statement I is true , Statement II is true , Statement II is not a correct explanation for statement I
C. Statement I is true , Statement II is false
D. Statement I is false , Statement II is true

Answer

b