Examine the provided key definitions and answer the question:
* $\text{M}\%\text{N}$ means $\text{M}$ is the son of $\text{N}$.
* $\text{M}@\text{N}$ means $\text{M}$ is the sister of $\text{N}$.
* \text{M} \ \text{N}$means$ \text{M}$isthefatherof$ \text{N}$.Whichofthefollowingexpressionsrepresentstherelation"$ \text{S}$isthefatherof$ \text{Q}$"?

1. A
   $\text{Q}@\text{S}\%\text{P}$
2. B
   \text{Q} \ \text{S} @ \text{P}$
3. C
   $\text{P}@\text{Q}\%\text{S}$
4. D
   \text{Q} \ \text{P} \% \text{S}$