Hello Tutor, could you please help me with this, My choice is D, Gambler's fallacy, but another tutor replied with a different answer...

You are employed as a commission-based sales clerk for a cosmetics retail store. You know that on average; exactly 50 percent of the customers that enter your store will make at least one purchase. Thus far this morning, you have waited on eight customers without making a single sale. You are convinced that the next customer you wait on will buy something. This belief is known as:

A.Aversion to ambiguity

B.The law of small numbers

C.Anchoring and adjusting

D.Gambler's fallacy

E.False consensus