My sister 's had it at least twice and my mom thinks I ' m immune . Then in social studies class , I had this pain in my stomach that felt like someone was stabbing me ! What a sucky day ! But I do n't have too much homework , which is good .
What 's a possible reason the writer had a pain in their stomach ?
A. Because their mom thinks they 're immune .
B. Because their sister has had something at least twice .
C. None of the above choices .
D. Because the writer was in social studies class .


C