Write a program in Python using for loop to print the sum of all the digits in the following string?

c $=\text{'}255319\text{'}$

Group of answer choices

total $=0$

for i in c:

total $=$ total $+$ str$($c$)$

print$($total$)$

for i in c:

total $=0$

total $=$ total $+$ int$($c$)$

print$($total$)$

total $=0$

for i in c:

total $=$ total $+$ int$($c$)$

print$($total$)$

total $=0$

$[$ total$+$i for i in c$]$