In these formulas, it is useful to understand which variables are parameters that specify the nature of the wave. The variables E0 and B0 are the of the electric and magnetic fields.

In these formulas, it is useful to understand which variables are parameters that specify the nature of the wave. The variables E₀ and B₀ are the amplitudes of the electric and magnetic fields.

Explanation:

Generally, the variables that specify the nature of the wave are:

(1) The amplitude of the electric field, designated as E₀, and

(2) The amplitude of the electric field, designated as B₀.

there are no correct statementd on the list of choices you provided.