Answer:
Force will be doubled.
Explanation:
There exists an electric force between charges and this force is given by :
[tex]F=\dfrac{kq_1q_2}{d^2}[/tex]
Here,
k is the electrostatic constant
d is the distance between charges
It is clear that the electric force between charges is directly proportional to the product of charges. According to this question, if the charge is doubled on one of the two objects, the force of between them gets doubled.
Hence, the correct option is (B).