Final answer:
The common portion sizes for Filet Mignon are 6 ounces and 8 or 10 ounces, with 16 ounces being unusually large and 12 ounces being less common.
Step-by-step explanation:
Filet Mignon is often considered a luxury cut of beef, and it typically comes in smaller portion sizes compared to other steak cuts due to its tenderness and price. The two common portion sizes for Filet Mignon are 6 ounces and 8 or 10 ounces. Option a) 16oz is typically too large for a Filet Mignon, and option d) 12oz is less common but can sometimes be found in restaurants catering to those with a larger appetite. It's important to note that portion sizes can vary slightly depending on the restaurant or butcher.