Answer:
D. weak form of the efficient market hypothesis.
Step-by-step explanation:
Weak form efficiency is also known as the random walk theory. According to this theory, past events do not have any effect on future prices. The individual supporting weak form efficiency advocates that the current value does not have any relationship with past information. In the above case, the investor finds that the past and the present situation is equivalent and therefore this proves to be the violation of the weak form efficiency.