I've got problems with this exercise

Question

Fill in the blanks to calculate the sum oft all elements in the array "arr" using the enhanced for loop:
int res=0;
___(int el___arr){
res+=__;
}

Answer 1

int res=0;
for(int el : arr){
res+= el;
}

Answer 2

int res=0;
for(int el : arr){
res+= el;

Answer 3

int res=0;
for(int el : arr){
res+= el;

Answer 4

for
:
el