Which set of statements about Spanning Tree Protocol default timers is true?

Which set of statements about Spanning Tree Protocol default timers is true?

A.
The hello time is 5seconds.The forward delay is 10 seconds.The max_age timer is 15 seconds.

B.
The hello time is 2seconds.The forward delay is 20 seconds.The max_age timer is 30 seconds.

C.
The hello time is 5seconds.The forward delay is 15 seconds.The max_age timer is 20 seconds.

D.
The hello time is 2seconds.The forward delay is 10 seconds.The max_age timer is 15 seconds.

E.
The hello time is 2seconds.The forward delay is 15 seconds.The max_age timer is 20 seconds.