Which of the following is not true for macroamylase?

• A. Presence of macroamylase in the serum is referred to as macroamylsemia
• B. Macroamylase is formed by binding of ordinary S type amylase with IgG, IgA or other normal abnormal high molecular weight proteins
• C. Macroamylsemia is not symptomless
• D. Macroamylase causes a harmless condition which may be confused with other causes of hyperamylasemia