answer the multiple choice pls!

M4. The output of the following code is: 5 2.000000 Answer= 2 Find the missing part in denoted by in the code given below: #include int f1[void): double f2(int): int f(double): main) printf("Answer %d ", 3: //missing code is here 3 int flvoid) inti: printf("%d" - 10.1/2)); return ) double 12(intl) return( , /4); 2 int 13(double printf(" ", return a) na b) mm c) ( d) (2) YOUR