You Are Employed as a Commission-Based Sales Clerk for a Cosmetics

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.