A patient of peptic ulcer was prescribed ranitidine and sucralfate in the morning hours.Why is this combination incorrect:

• A. Ranitidine decreases the gastric pH so sucralfate is not able to act
• B. Sucralfate inhibits absorption of ranitidine
• C. Ranitidine combines with sucralfate and prevents its action
• D. Combination of this two drugs produces serious side effects like agreanulacytosis