Anna has type 1 diabetes and gives herself insulin injections to help manage her blood glucose level. One afternoon, Anna tested her blood and discovered that her blood glucose level was 88 mg/dl. Based on this information, Anna should
a. consume candy or fruit juice to increase her blood glucose level.
b. do nothing to intervene, because her blood glucose level is normal.
c. give herself an extra injection of insulin.
d. do not eat anything for the next 5 hours, which provides time for her blood glucose level to drop to normal naturally.