What happens with my code, guys? I have already set the conditional statement that if x equal to 2, then the function returns True.In fact, it return None.Why is that?

```
def is_prime(x):
if x < 2:
return False
elif x == 2 and x == 3:
return True
elif x > 3:
for n in range(2,x-1):
if x % n == 0:
return False
else:
return True
```

Your function fails on is_prime(2). It returns None when it should return True.

`Replace this line with your code.`