On a Series of Coin Tosses, Oleg Has Correctly Predicted

Multiple Choice

On a series of coin tosses, Oleg has correctly predicted heads or tails seven times in a row. In this instance, we can reasonably conclude that Oleg's predictive accuracy

A) defies the laws of statistical probability.
B) illustrates the phenomenon of hindsight bias.
C) is inconsistent with the placebo effect.
D) is a random and coincidental occurrence.