Which of the following is not a requirement for becoming a naturalized citizen

The requirements are :you already have a green card 
you are 18 yrds
you have lived in the us lawfully for five years three years if married to an us citizen ,refugee or have received a green card 
during the five years you have physically present for at least half the time
  Hope this helps I could give you a more direct answer if I saw the answer choices

12 days because 1/4 is 25% of 100 if 100 is equal to 1 pound then multiply 3 by 4 which equals 12