Context: I know you ' ve been waiting for this . Immer treu . " She murmured his last words back to him , looking back down into her glass . He tossed some coins down on the bar and walked out as he had come in - without a notice to anyone else .

Question: Why did he toss some coins onto the bar ?
Options:
0. Because a woman looked back down into her glass .
1. Because he needed to pay his tab .
2. Because a woman murmured his last words back to him .
3. Because someone has been waiting for something .
Answer: 1