Assume there are three processors P$1,$ P$2,$ and P$3$ in the "spin lock" scheme. P$1$ starts with the lock and stores $1$ into the lock. Then P$1$ exits and unlocks the lock. P$2$ and P$3$ race to see which reads the unlocked value first. Assume that P$3$ is satisfied and enters the critical section, which of the following operations is correct?

Group of answer choices

P$2$ stores $1$ into the lock

P$2$ starts testing and spinning

P$2$ stops spinning

P$2$ reads the lock value once