Read the following context and choose the best option to answer the question.
Context: With the car jacked up about 75 % of the way needed to get the full - size tire off , a random big athletic guy came up out of nowhere and asked if I wanted help . I said " If you can help , please , I ' m about to have heatstroke here . " He cranked the car the rest of the way up , swapped the donut for the flat , and let the jack down . He then took off , refusing anything more than a " Thank you " for his assistance .
Question: What may be true about the athletic guy ?
Options: 
A. None of the above choices .
B. He had a heatstroke .
C. He is charitable .
D. He was stranded .


C