Recently, Bre-Y Minerals Ltd. announced that it had discovered one of the largest silver mines in history. The figure below represents three possible stock price adjustments for Bre-Ys stock around the time of the announcement. Day 0 represents the announcement date.

Which of the reactions represents the path taken by the stock price in an efficient market?

Group of answer choices

Reactions A, B, and C

Reaction A

Reaction C

Reaction B

Reactions A and B