Answer:
B) the same amount of work in less time
Step-by-step explanation:
Hand saw and power saw both are used to cut the board
So here we can say that here work done is to cut the the board only.
Now if both object has done same job so the total work done by both of them is same
now since power saw is electrically operated so it will complete the job in less time so the power will be more as we define power as rate of work done
So here we will have

so here we can say that the correct answer will be
B) the same amount of work in less time