Two bodies each of mass 100 kg are placed 1 m apart. The gravitational force between them is approximately (with $G = 6.67 \times 10^{-11}$ N·m²/kg²):

1. A $6.67 \times 10^{-7}$ N Correct answer
2. B $6.67 \times 10^{-6}$ N
3. C $6.67 \times 10^{-8}$ N
4. D $6.67 \times 10^{-5}$ N