Context: Here are the fighter salaries from last weekend 's Strikeforce ' At the Mansion ' II at the Playboy Mansion in California . Kazuo Misaki ( $ 1,400 Def . Joe Riggs ( $ 20,000 ) Josh Thompson ( $ 40,000 ) Def . Ashe Bowman ( $ 2,000 ) Terry Martin ( $ 10,000 ) Def .

Question: Why did the fighters earn salaries ?
Options:
0. Because it was last weekend .
1. Because they fight to earn money .
2. Because they were at the Playboy Mansion .
3. Because they were in California .
Answer: 1