Which statement by a patient indicates a lack of understanding of the prescribed medication Metformin?
a) "I should take Metformin with my meals to help control my blood sugar."
b) "Metformin can cause low blood sugar, so I need to be careful."
c) "It's okay if I skip a few doses of Metformin when I feel fine."
d) "I'll need to monitor for any signs of lactic acidosis while taking Metformin."
