Suppose
A is the matrix given by A=[[-5,4],[5,-3]]. Given the descriptions below, determine the elementary matrices and their inverses. Which of the following options correctly describes the elementary matrix E_(1)?

a. E_(1) multiplies the first row of
A by -5.
b. E_(1) multiplies the first column of
A by 4.
c. E_(1) multiplies the second row of
A by 5.
d. E_(1) multiplies the second column of
A by -3.