a. They refer to the “otter” b. The friend’s mail was about an otter. c. Yes, his friends did send him an otter through two Arabs. a. "They" in the context refers to the otters, which are as common as mosquitoes in the Tigris marshes. b. The friend’s mail was about an otter. c. Yes, he was able to get his otter. His friend sent him an otter through two Arabs.