Answer:

Step-by-step explanation:
The gravitational force between two masses is inversely proportional to the square of the distance between them such that,
.....(1)
We have,
r₁ = 208 m,
, r₂ = 416 m, F₂ = ?
Put all the values in relation (1) such that,

So, the required force is
. Hence, the correct option is (d).