Get the information you need with the help of IDNLearn.com's extensive Q&A platform. Join our community to receive prompt and reliable responses to your questions from experienced professionals.

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.