The mortality rate for hyperglycemic hyperosmolar state (HHS) is:

a. Between 10 and 20%, which is 10 times lower than for DKA
b. Between 10 and 20%, which is 10 times higher than for DKA
c. Between 30 and 40%, which is 10 times lower than for DKA
d. Between 30 and 40%, which is 10 times higher than for DKA