Followers of the Random Walk Hypothesis Believe That

Followers of the random walk hypothesis believe that

A) security analysis is the best tool to utilize when investing in the stock market.
B) the price movements of stocks are unpredictable, and therefore security analysis will not help to predict future market behavior.
C) the price movements of stocks follow a "flag" formation such that charting prices can help an investor better time his or her security purchases.
D) support levels and resistance lines, when combined with basic chart formations, yield both buy and sell signals.