Question

In the scenario shown, what happens to Goroutine C when it calls RLock()?

```
var mu sync.RWMutex
// Goroutine A appelle mu.RLock()
// Goroutine B appelle mu.Lock()
// Goroutine C appelle mu.RLock()
```

Accepted Answer

It is blocked until Goroutine B releases the lock.

Answer

It acquires the lock immediately because A already holds an RLock.

Answer

It causes an immediate deadlock because the lock is pending.

Answer

It executes in parallel with B because B has not yet acquired the lock.

Question from the Go test