It emphasizes the betrayal of the Japanese, as well as the severity and the number of the attacks.
Answer
Tod didn’t have second thoughts about the decision he made.
Reason
“didn’t” is the same as “did not” and when used with “no” in the same sentence it becomes a double negative
It's either Jack, or Roger.
Jack is the one who kills the pigs(who symbolically represent Piggy), which later orders to kills Piggy.
But Roger is the one who drops the rock on PIggy.
But the better answer would be Jack