Which of the following statements regarding the hydrolysis of ${\text{PX}}_3$ and ${\text{PX}}_5$ halides is correct?

1. A.${\text{PF}}_3$ undergoes complete hydrolysis to form ${\text{H}}_3{\text{PO}}_3$ and $\text{HF}$.
2. B.${\text{PCl}}_5$ undergoes partial hydrolysis to form ${\text{POCl}}_3$ and $\text{HCl}$.
3. C.${\text{PBr}}_3$ is resistant to hydrolysis due to the large size of bromine.
4. D.${\text{PI}}_3$ hydrolyzes to form ${\text{H}}_3{\text{PO}}_4$ and $\text{HI}$.