In this task, you are given a context tweet and an answer. Your job is to generate a question for the given answer based on the given tweet paragraph. Note that your question should be answerable based on the given tweet, and the answer to your question should be the given answer.

Context: Re: ESPN report about LeBron opting out... It wasn't a surprise to Heat. Expected him to weigh options. Doesn't mean he's leaving (1/2)...— Ethan J. Skolnick (@EthanJSkolnick) June 24, 2014 Answer: lebron
who did espn report opted out

Context: The fact that Harry Reid called up Murthy right away on Monday proves this vote was going to happen with or without Cruz's amnesty vote— Amanda Carpenter (@amandacarpenter) December 16, 2014 Answer: harry reid.
who called murthy on monday?

Context: .@TheView There are 3 million nurses in America. You picked the wrong profession to mess with. @JoyVBehar @michcoll #nursesunite— Isra Hashmi (@israhash) September 16, 2015 Answer: 3 million

how many nurses are there in america?