Given below are two statements: 
Assertion (A): β -Glycosidic linkage is present in maltose.
Reason (R): Maltose is composed of two glucose units in which C1 of one glucose unit is linked to C4 of another glucose unit.

    

1. (A) and (R) both are correct statements and (R) explain the (A).
2. (A) and (R) both are correct statements but (R) does not explain (A)
3. (A) is the correct statement and (R) is the wrong statement.
4. (A) is the wrong statement and (R) is the correct statement.