Ramen Noodles Were Hotter Than Ever in 2010

Ramen noodles were hotter than ever in 2010. Considered a bargain meal for cash-starved college students... in 2010, 4 billion individual packets were devoured in the United States, a 4 percent increase over 2006. If once college students graduated, they stopped eating ramen, would ramen be considered a normal or inferior good?

A) inferior because students only eat ramen when income is low
B) normal because students only eat ramen when income is low
C) inferior because students only eat ramen when income is high
D) normal because students only eat ramen when income is high