Which of the following statement is false? a) The set of vectors (₁, U2, U3, U4) in R³ is linearly dependent b) If A is an invertible (nonsingular) matrix with size n, then the nullity of A is zero c) If A is an invertible (nonsingular) matrix with size n, then the linear transformation L: R R, L (a) = Az is one-to-one d) If A is an invertible (nonsingular) matrix with size n, then the columns of A form linearly dependent vectors in R