Semi-strong form efficiency can best be described as:

	A.	a market in which trading strategies based on past prices cannot earn abnormal profits.
	B.	a market in which trading strategies based on all publicly available information cannot earn abnormal profits.
	C.	the ability of investors to earn abnormal profits from the over-reaction of share prices to news.
	D.	all information, public and private, is fully impounded in share prices.