Biology · MICROBES IN HUMAN WELFARE

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Lactic acid bacteria (LAB) added to fresh milk as a starter multiply at suitable temperatures, converting milk to curd and improving its nutritional quality by increasing vitamin \( \text{B}_{12} \). Reason (R): LAB also play a very beneficial role in checking disease-causing microbes in our stomach. In the light of the above statements, choose the correct answer from the options given below:

1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is NOT the correct explanation of (A).
3. Statement (A) is true but (R) is false.
4. Statement (A) is false but (R) is true.