The implication of the weak$-$form EMH is:

A$.$ insider information is of no value for obtaining excess abnormal returns.

B$.$ all public and private information is rapidly incorporated into security prices.

C$.$ technical analysts can make excess returns.

D$.$ there should be no relationship between past price changes and future price changes.

E$.$ no group of investors has monopolistic access to information relevant to the formation of prices, and no

one should be able to consistently achieve abnormal returns.