Which of the following is true for cpr chest compressions?

I don't see any options but this is true.

100 compressions should be performed every minute.

in order to perform CPR correctly, 100 compressions should be performed every minute, or else it may result in failure to revive.

Hope this helped

nope, but i have cleaned my brush in my cup of not as potentially harmful but nevertheless, very upsetting for scottish/british folks. especially if you've used the last teabag for it

explanation:

there could be something in that . . i am indeed an old scottish man!

there's a bit of bolshie-ness with it too though. i won't let go of the old ways . . tea and whisky . . whether the young whippersnappers like it or not!