Explanation:
The modifications that can be done while performing a CPR or an unresponsive choking is to look for the things that is obstructing the way while opening the airway every time.
Every time we open the mouth to give breaths, we need to open the mouth wide and look for an object that is obstructing the way. If there is anything that is obstructing the way, then we need to remove it and then continue the CPR.