推理判断题。根据But Christopher is the only person I know saying people need help now.可知Thomas在用自己的方式帮助糖尿病人，所以C项正确。A项与Thomas often devotes up to 50 hours a week to his cause, while still doing his full-time job waiting tables不符；B项与Even with a staff of 22 volunteers；D项与"Of the diabetes charities out there, most are putting money into finding a cure," says Bentley Gubar, one of Rockstar's original members. "But Christopher is the only person I know saying people need help now."不符。