Tena Has $50 Per Week to Spend on Lunches

Tena has $50 per week to spend on lunches. Egg rolls cost $2 each and a plate of chow mein costs $7. Tena wants to buy five plates of chow mein and ten egg rolls per week. This combination of chow mein and egg rolls each week is

A) obtainable, but she would be spending every bit of her lunch money.
B) obtainable, but she could buy more egg rolls.
C) obtainable, but she could buy more chow mein.
D) unobtainable.