How do I resolve which child collider is colliding?

I have an object with a rigidbody2D and a several child objects with 2D colliders. Whenever this object collides with anything, the parent object with the rigidbody2D is the object that is passed into the OnCollisionEnter2D function ( I verified this by printing the object’s tag ). How do I get the Gameobject of the child the collision happened with? I need to know so I can tell if my player character was hit in the shield, chest, etc.

myCollision2D.collider.tag was the way I was able to get the child tag from the collision. Thanks to SnotE101 for the push in the right direction with the comment.