Answer : A)

B) the coordinates of the duck’s final position = (4,-3)
Step to step explanation:
The translation rule to map a point (x,y) h units to the right is given by :-

The translation rule to map a point (x,y) k units to the down is given by :-

Given : In the app you are creating, a duck is going to fly from the coordinates (1, 3) then go 3 units right. And 6 units down.
i.e. The translation rule to describe the given translation:-

Thus , A)

Now, the coordinates of the duck’s final position are :-

Hence, the coordinates of the duck’s final position = (4,-3)
B) the coordinates of the duck’s final position = (4,-3)