Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Sucrose is a disaccharide and a non-reducing sugar.
Reason (R) : Sucrose involves glycosidic linkage between \( C_{1} \) of \( \beta \)-glucose and \( C_{2} \) of \( \alpha \)- fructose.
Choose the most appropriate answer from the options given below:
