The correct option is D $17500
Length of the rectangular farm = 200 ft
Width of the rectangular farm = 150 ft
To find the cost of fencing, we need to find the perimeter of the farm.
We know,
Perimeter of a rectangle
= 2 × (Length + Width)
Substituting the values, we get:
Perimeter of the rectangle
= 2 × (200 + 150) feet
= 2 × 350 feet
= 700 feet
Cost of fencing 1 foot of the farm = $25
∴ Cost of fencing the entire farm
= Perimeter × Cost of fencing per foot
= 700 × 25
=$17500
Thus, the cost of fencing the whole farm is $17500.