Which statement is true according to the Davis$-$Bacon Act of $1931$ and the Walsh$-$Healy Public Contracts Act of $1936?$

Multiple Choice

Employers must pay a training wage to workers under the age of $15$ for a period of up to $60$ days.

These laws cover all companies doing business in the United States.

Federal contractors must pay their employees at rates at least eq $\frac{f}{m}$ to the prevailing wages in the area.

The overtime rate applies to the hours worked beyond $45$ in one week.

Under these laws, individuals aged $18$ and $19$ may not be employed in hazardous occupations defined by the Department of Labor.