With reference to solar water pumps, consider the following statements:1.Solar power can be used for running surface pumps and not for submersible pumps.2.Solar power can be used for running centrifugal pumps and not the ones with piston.Which of the statements given above is/are correct?

1. A

   1 only

   1 only. The paper does not key surface-only solar pumps as a correct standalone.

2. B

   2 only

   2 only. Submersible/centrifugal wording is not keyed correct either.

3. C

   Both 1 and 2

   Both. Both fail as framed.

4. D

   Neither 1 nor 2

   Neither. As worded, solar-for-surface-pumps and the second technical limb are not counted correct. Honour the overlay.

Summary. Official key is (d) neither. The two solar-pump statements, as printed, are not keyed true. (Surface and submersible solar pumps exist in the market; this item still scores neither limb.)