If Avogadro number N_A, is changed from 6.022x 10²³ mol^- to 6.022x 10²⁰ mol^- , this would change

If Avogadro number N_A​ is changed from 6.022×10²³mol⁻ to 6.022×10²⁰mol⁻, this would change the mass of one mole of carbon from 12 g to 12 mg. However, the following will remain unchanged.
(A) The ratio of chemical species to each other in a balanced equation
(B) The ratio of elements to each other in a compound
(C) The definition of mass in units of grams