Answer:
Newton/sec is not appropriate unit for power.
(d) is correct option.
Step-by-step explanation:
Power :
Power is equal to the energy divided by time.
In mathematical term,

Where, E = energy
t = time
The unit of power is Joule/sec.
The power is equal to the work divided by time.
In mathematical term,

Where, W = work
t = time
The unit of power is Watt.
Therefore,
The unit of power is watt, horsepower and joule/s.
Hence, Newton/sec is not appropriate unit for power.