Thecost, c, of a college education that serves only as a signal of ahigh-quality worker is$10,000. The wage of a knownhigh-quality worker, wh, is$30,000. The wage for a knownlow-quality worker, wl, is$10,000. For what value of the share of the work force that is of highquality, s, is a pooling equilibriumpossible?

A.

s< 0.45

B.

s= 0

C.

s= 0.25

D.

s> 0.5