Which statement about artificial sweeteners is incorrect:
A. Aspartame is less heat stable than sucralose.
B. Patients with phenylketonuria cannot drink diet Coke because it uses sucralose.
C. A small portion of aspartame is broken down to methanol in the small intestine, which can be converted to formaldehyde, a carcinogen.
D. Sucralose in a high dose causes leukemia. But this dose is more than 100x higher than the ADI.