According to the efficient market hypothesis, which of the following statements is not correct?

Select one:

a$.$ Stock market prices tend to rise today if they rose yesterday.

b$.$ As judged by the typical person in the market, all stocks are fairly valued all the time.

c$.$ At the market price, the number of shares being offered for sale matches the number of shares people want to buy.

d$.$ All of the above statements are incorrect.