On Occasion,the Notation = [A,θ] Will Be a Shorthand

Multiple Choice

On occasion,the notation = [A,θ] will be a shorthand notation for .
-The vector
Has components +5 and +7 along the x and y axes respectively.Along a set of axes rotated 90 degrees counterclockwise relative to the original axes,the vector's components are

A) −7;−5.
B) 7;−5.
C) −7;5.
D) 7;5.
E) 7;0.