Given below are two statements, one labelled as Assertion (A) and the other labelled as **Reason (R):** Assertion (A):** Straight-chain alkylbenzene sulphonates have replaced branched-chain alkylbenzene sulphonates in modern synthetic detergents. **Reason (R):** Microorganisms can easily degrade straight-chain hydrocarbons, reducing water pollution and foaming in rivers. Select the correct answer using the codes given below:

Options:

• A: Both (A) and (R) are true and (R) is the correct explanation of (A).
• B: Both (A) and (R) are true but (R) is not the correct explanation of (A).
• C: (A) is true but (R) is false.
• D: (A) is false but (R) is true.

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