In Equilibrium in a Mixed Market

In equilibrium in a mixed market

A) the percent of low quality goods on the market equals the buyers' estimate of the percent of low quality goods on the market.
B) the percent of low quality goods on the market equals the sellers' estimate of the percent of low quality goods on the market.
C) 50% of the goods on the market are low quality and 50% are high quality.
D) all low quality goods have been driven out of the market.