Read the following context and choose the best option to answer the question.
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: 
A. None of the above choices .
B. He was looking for the restaurant .
C. He was looking for his house .
D. He was looking for his house keys .


D