Terrestrial planets are formed from rocks which are also known as telluric planet. They are composed primarily of silicate rocks or metals. Then, the Jovian planets are known as gas planets. Terrestrial planets include Mercury, Venus, Earth, and Mars while the Jovian planets are Jupiter, Saturn, Uranus, and Neptune.
But we do not know whether the force is pushing or pulling (the same direction (both forces are parallel) but: .........[ ]<-F-- or .......[ ]--F-->). I suppose the correct answer is B