Would you survive if you had only one can of food

No , you also need water to survive and that one can of food will eventually run out.

No because water is far more important than food. Water keeps your blood thin and thin blood circulates through your body easily and keeps your heart pumping at a steady rate. Plus, the can of food will eventually run out which will leave you with no food.

Answer(a) one needs to learn from experts and be determined to be the best in the field;