Which of the phrases a),b),c)and d) given below each sentence should replace the phrase printed in bold in the sentence to make grammatical…

Which of the phrases a),b),c)and d) given below each sentence should replace the phrase printed in bold in the sentence to make grammatically correct ?If the sentence is correct as it is given and No correction is required mark e) as the answer.
Pritesh while away his time in playing games on the computer instead of studying