For John, instant noodles are examples of
D.inferior goods
Step-by-step explanation:
John treats instant noodles as cheaper goods and only is buying them because he has no choice but to buy them at that time.
Thus in his mind they are inferior goods to what he can buy when he has more money.
This concept could arise due to the brand marketing or the taste of the food or the simple marketing of it
The brands like that are marketed as cheap food so they are also being treated as such by the people who buy them as they understand the function of it as such.