Which of the following are true of PIMv2 Hello messages?

Which of the following are true of PIMv2 Hello messages?

A.
They are sent every 10 seconds to 224.0.0.2

B.
They are sent every 10 seconds to 224.0.0.13

C.
They are sent every 30 seconds to 224.0.0.2

D.
They are sent every 30 seconds to 224.0.0.13