Answer:
A. 30:2
Explanation:
After every 30 chest compressions at a rate of 100 to 120 a minute, give 2 breaths.
C, because vegetables, dairy, juice, and fruit do not have whole grain. Grain is rice, wheat,etc.
Well... It wouldn't be effective as it is a synthetic progestin meant to cause menstrual bleeding and ovulation... The thing is that because that would take four more weeks to happen again, so it would be ineffective.
The mini pill which is essentially the same thing and is Progestin is to be taken everyday and has a 90 effectivity rate.