If
P + Q means 'P is son of Q'
P - Q means 'P is father of Q'
P × Q means 'P is daughter of Q'
P ÷ Q means 'P is husband of Q'
Which of the following is true for A - C + D × E ÷ K?
1
E is uncle of A
2
A is son in law of D
3
K is mother in law of A
4
D is father of A