Charles Darwin was a Geologist, biologist and is best known for his contributions to science of evolution.
Statement that when two elements combine with each other to from more than one compound, the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.
You can automatically rule out CH₄ since it has no lone pairs at all around the central atom. Water has 2. Ammonia is the only Lewis structure that contains one lone pair.
The answer is they follow a patter for valence electrons.
