Yesterday, Jenny ran in a marathon (26 miles). While she ran, she drank water only (several large cups) from water stations along the race course. At the end of the race, she experienced difficulty making it to the finish line. She was confused, and she complained of having a headache and feeling dizzy. Based on this information, Jenny was probably suffering from .a. kidney failure
b. brain cancer
c. heat cramps
d. water intoxification