Which of the following statements is NOT correct for a machine?

Which of the following statements is NOT correct for a machine?

a. A machine transforms the available energy into some useful work
b. A machine transmit motion but do not transmit power
c. A parts of the machine move relative to each other
d. none of the above

Correct Answer : b. A machine transmit motion but do not transmit power

Explanation:

Option b is wrong because, a machine may transmit both power and motion.