What is the treatment for hypoglycemia in animals?

The administration of an immediate intravenous bolus of 50% dextrose solution is recommended.
Glucagon administration can be used in cases of refractory or persistent hypoglycemia due to insulin overdose.
Prednisolone can be used in animals with insulin-producing tumors, in addition to glucose supplementation.
a) Only statement I is correct.
b) Statements I and II are correct.
c) Statements I and III are correct.
d) All statements are correct.