Iterators

What will be the output of the following code?

week_days = ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday']
for n, day in enumerate(week_days, start=1):
    print(n, day)

A.

0 Monday
1 Tuesday
2 Wednesday
3 Thursday
4 Friday

B.

1 Monday
2 Tuesday
3 Wednesday
4 Thursday
5 Friday

C.

1 Tuesday
2 Wednesday
3 Thursday
4 Friday