Given below are two statements, one labeled as Assertion (A) and the other as Reason (R). **Assertion (A):** Balthar soil has very low agricultural productivity and is mostly used for growing coarse grains like maize, jowar, and bajra. **Reason (R):** It is highly porous, rich in iron oxides, and has extremely poor water-retaining capacity due to its sandy-gravelly nature. 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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