If labour market discrimination crowds women into a limited number of occupations so that the number of occupations available to men increases, then ?

• A. wages of men will be higher but the marginal productivity of men will be lower than it otherwise would be
• B. the wages of men will be lower but the marginal productivity of men will be higher than it otherwise would be
• C. both the wages and the marginal productivity of men will be lower than they otherwise would be
• D. both the wages and the marginal productivity of men will be higher than they otherwise would be