Which of the following days is considered a public holiday?

Okay, let's talk about Boxing Day and why it's a public holiday in the UK. Public holidays, also known as bank holidays, are days when most businesses and services are closed, giving people a day off work. Boxing Day falls on December 26th, the day after Christmas Day. Its origins are a bit murky, but the most common explanation is that it was traditionally the day when wealthy people would box up gifts and distribute them to the poor and their servants. Another theory suggests it was named after the alms boxes placed in churches to collect donations for the poor, opened on that day. Whatever the exact origin, Boxing Day has evolved into a day for spending time with family, watching sports, and of course, taking advantage of post-Christmas sales. St Valentine's Day, April Fool's Day, and birthdays are all celebrated in the UK, but they aren't official public holidays, so most people still have to go to work.