AABC is dilated by a factor of to produce AA'B'C

What is A'C', the length of AC after the dilation? What is the measure of A"?
OA. AC 25, mZA'=37°
O B. AC 1, mZA' = 7.4°
OC. A'C' 0.8, mA'= 53°
O D. AC 1, mZA' = 37°