The fallacy of trying to defend our wrongdoing by pointing out similar behavior in others, as a way of dodging responsibility, is

Two Wrongs Make a Right

Explanation:

Just like any other type of fallacy, arguing that someone else did wrong, to avoid responsibility, is an invalid reasoning process and lacks logic.

The error in the reasoning lies in trying to think that two wrongs make a right,

This fallacy is common among little children when they try to hide something.

Some teenagers also frequently point out to their mates, to fell less ashamed, or justify their action.

The deceptive nature of thinking "Two Wrongs Make a Right" results in an invalid logical statement.

Instead of wrongful payback, we should do good to those who treat us badly. It is human nature to retaliate, but that is not what God wants.

Most moral principles and teachings from religions like Christianity or Islam will teach not to act badly upon those who did it on us, for human nature can often wish to pay back.

Instead of wrongful payback, we should do good.

In 1 Thessalonians 5:15

Make sure that nobody pays back wrong for wrong, but always try to be kind to each other and to everyone else.

pretty sure a is right

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