Answer:
F = 5.9 N
Step-by-step explanation:
Given that,
Mass of water, m₁ = 1000 kg
Mass of the Sun,

Distance between two bodies,

We need to find the force of gravity between water and the Sun. The formula for the gravitational force between two bodies is given by :

or
F = 5.9 N
Hence, the correct option is (b).