The intake ports must be open to allow fuel and oxygen to enter cylinder, then closes during compression. Your answer is A.
I would probably say B even though the other methods might work as well
Answer:
multi_exit_discriminator
Explanation:
When two routers are connected to the same internet exchange or generally, two routers are used in the same location for connection to external networks, it's best practice to set up BGP sessions to or from each router.