Question: You want to find out what day Twelfth Night falls on after Christmas 2018. Which code should you use?

1. `$xmas = new DateTime('Dec 25, 2018');`
2. `$twelfth_night = strtotime('December 25, 2018 + 12 days');`
3. `$twelfth_night = strtotime('December 25, 2018 + 12 days');`
4. `$xmas = new DateTime('Dec 25, 2018');`

Answer: The correct answer of the above question is Option C:`$twelfth_night = strtotime('December 25, 2018 + 12 days');`