English Grammar find the error in given sentence

don't worry, he is a good/(a)subordinate or will/(b)follow your orders./(c) no error/(d) - don't worry, he is a good / (a) subordinate or will / (b) follow your orders./(c) no error / (d) - find the error in given sentence English Grammar in hindi,  Spot the error  question answers in hindi pdf   questions in hindi, Know About English Grammar online test English Grammar notes in hindi quiz book