Which of the Following Represents a Rule for Balancing a Nuclear

Multiple Choice

Which of the following represents a rule for balancing a nuclear equation
I. The total number of protons plus neutrons in the products and reactants must be the same
II. The total number of each type of element in the products and reactants must be the same
III. The total number of nuclear charges in the products and reactants must be the same
IV. The total number of each type of elementary particle in the products and reactants must be the same

A) I, II, III, and IV
B) I, II, and IV
C) I, III, and IV
D) III and IV
E) I and III