What Advice Would You Give a Patient Prescribed Tocainide (Tonocard)to

What advice would you give a patient prescribed tocainide (Tonocard) to avoid an adverse effect of this drug?

A) "Be sure to avoid foods that are high in alkaline ash such as citrus fruits."
B) "Wear protective clothing and a strong sunscreen when you go outdoors."
C) "Avoid large crowds and people with flu or cold symptoms."
D) "Report any pulmonary symptoms (e.g. ,cough) to your prescriber right away."