70. let v be the vector space of polynomials over r of degree less than or equal to n. for p(x) = 4g +ax +. +a,x in v, define a linear transformation t: v> v by

70. Let V be the vector space of polynomials over R of degree less than or equal to n. For p(x) = 4g +aX +. +a,x in V, define a linear transformation T: V> V by (Tp)(x) = 40 4t + a,x-... +(-1)"a,x". Then, which of the following are correct? (a) T is one-to-one (C) Tis invertible (b) T is onto (d) det T=0 a t