Improve the bracketed part of the sentence.
On a holiday, Noman (prefers reading than going) shopping.

Out of the options given, 2 is the correct answer.
‘Prefers reading rather going’ and ‘preferred reading to go’ are grammatically incorrect in the context of the sentence.
Therefore the correct answer is ‘prefers reading to going’.

অতএব সঠিক বাক্য: On a holiday, Noman prefers reading to going shopping.