With reference to solar water pumps,
consider the following statements:
Solar power can be used for running surface pumps and not for submersible pumps.
Solar power can be used for running centrifugal pumps and not the ones with piston.
Which of the statements given above is/are correct?
a. 1 only
b. 2 only
c. Both 1 and 2
d. Neither 1 nor 2