C: Comment on the 2 arrays regarding P and Q

Question 12 (1 point) Comment on the 2 arrays regarding P and Q: int "a1(8: int (a2|8]) P. Array of pointers Q. Pointer to an array a1 is P, a2 is P a1 is P, a2 is Q a1 is Q, a2 is P a1 is Q. a2 is Q Question 20 (1 point) Which function definition will run correctly? int sum(a, b) return (a +b): int sum(int a, int b) return (a+ b): Both (a) and (b) int sum(int a, int b) return (a b) J Question 21 (1 point) Which of the following function declaration would be illegal for a function that returns nothing and has one double parameter? void fx) None of above void fldouble x): void fidouble)