a$.$ Pedro is more likely to join a union if he is looking for employment in a field

in which employers tend to pay efficiency wages.

in which few employers have monopsony power.

in which pay$-$for$-$performance compensation is common.

in which there are many employers and many employment options.

b$.$ How might Pedro benefit from joining a labor union? Select all that apply.

He and his fellow union workers might have improved communication with management.

He could be guaranteed promotions and certain vacation days during his first five years of employment.

He could receive higher wages as compared to non$-$union workers in the same job field.

He and his fellow union workers would be exempt from special skills and safety training and therefore would be more productive.