John has very little knowledge of cheese and seldom buys it for personal use. However, when he is invited to dinner by a friend, a self-confessed cheese lover, John feels obligated to buy cheese for him. When he returns home after dinner, John finds that the "Stilton cheese" he randomly chose and bought is displayed on the calendar in his kitchen. Which of the following is most likely to account for John’s choice of cheese?
a. Mere exposure effect
b. Just meaningful difference
c. Selective distortion
d. Selective exposure

It is a psychological phenomenon due to which people tends to develop some preference for particular things , simply because they seems to be similar to themselves .

Hence , this effect is sometimes also called as the familiarity principle .

And according to recent study , more often someone sees the thing or even a person , the more pleasing the thing or the person becomes .

Hence , from the question information , John shows a Mere exposure effect .