Which of the following conditions will contribute to the stability of a gene pool in a natural population?
- Large population
- No net mutation
- Non-random mating
- No selection
- $\text{P}$ Only
- $\text{P}$ and $\text{Q}$ Only
- $\text{P}$ and $\text{R}$ Only
- $\text{P},$ $\text{Q}$ and $\text{S}$ Only