The correct option is A W=72o G=144o B=54o R=90o
Central angle for white = Number of white T−shirtsTotal number of T−shirts×360o
White (W) = 20100×360o=72o
Similarly we get,
Green (G) = 40100×360o=144o
Blue (B) = 15100×360o=54o
Red (R) = 25100×360o=90o