Context: Lost his keys last night right after he called me - left the restaurant keys inside the restaurant or something . Not sure what happened , but then today he left to do errands and left his phone at home . Whatev - I ' m just glad that 's he 's okay .

Question: Why did the male subject call the narrator ?
Options:
0. None of the above choices .
1. He was looking for the restaurant .
2. He was looking for his house .
3. He was looking for his house keys .
Answer: 3