Read the following context and choose the best option to answer the question.
Context: " Can you point him out ma'am ? " said T - shirt . " Yes he was in a gray sweater , there see him ? He has the camera on his lap ... " T - shirt guy went to confiscate the camera .
Question: What job does " T - shirt guy " have ?
Options: 
A. He is a " thug "
B. He has the concession for selling cameras
C. None of the above choices .
D. He is a security guard


D