AP PSYCHOLOGY

Detailed explanation-1: -While most believe it to be a religious obligation, giving up meat on Christmas Eve is actually more a popular custom. The Catholic Church specifies the days on which meat is to be avoided (seafood doesn’t count as meat), but it doesn’t include the day before Christmas (unless it falls on a Friday).

Detailed explanation-2: -The long tradition of eating seafood on Christmas Eve dates from the Roman Catholic tradition of abstaining from eating meat on the eve of a feast day. As no meat or animal fat could be used on such days, observant Catholics would instead eat fish (typically fried in oil).

Detailed explanation-3: -In the episode, Lisa decides to stop eating meat after bonding with a lamb at a petting zoo. Her schoolmates and family members ridicule her for her beliefs, but with the help of Apu as well as Paul and Linda McCartney, she commits to vegetarianism.

Detailed explanation-4: -Fish and seafood Catholic tradition prohibits the consumption of meat on the evenings before religious holidays. Most Italians, therefore, eat a fishy feast on Christmas Eve.