2a+ay+2b+by
basically it's just multiplying them together
Answer: B
Those who opposed the Ku Klux Klan embraced the notion that America was a melting pot.
The plasma membrane of a human cell acts as a selective gatekeeper, controlling the entry of certain substances, while controlling the exit of certain substances as well.
Steam boats, rail roads and telegram made communication and work easy and faster.
B. Expand its influence and power around the world. I'm not sure if that's correct or not though.