Seven years ago:  Jucy : $7$  cat: $$0$$  This year:  Jucy : $7+6=13$  cat: $0+7=7$  Nicole : $34-13-7=14$$  $$14-13=1$$ 
Jucy and Nicole are celebrating their birthdays together. Seven years ago, when Jucy turned $6$ years old, she received a newborn cat as a birthday present. Today the sum of the ages of the two people and the cat is $34$ years. Jucy is~\uline{~~~~~~~~~~}~years younger than Nicole. 
Options:
  $$1$$ 
  $$2$$ 
  $$3$$ 
  $$4$$ 