How Many of the Following Statements Are True Concerning Chemical

Multiple Choice

How many of the following statements are true concerning chemical equations?
I.Coefficients can be fractions.
II.Subscripts can be fractions.
III.Coefficients represent the relative masses of the reactants and/or products.
IV.Changing the subscripts to balance an equation can be done only once.
V.Atoms are conserved when balancing chemical equations.

A) 3
B) 4
C) 2
D) 5
E) 1