I think the correct answer 3. A solution is a type of mixture having a uniform composition where the components can't be seen separately and all components are in the same state. It is considered as a homogeneous mixture where at any point the properties and the concentration of the solution would have the same value.
The answer is A- single bonds made by 1 atom to 3 other atoms within a molecule
Technically speaking absolutely nothing but from a religious standpoint God did