a. provide temporary help until proper medical care, if needed, is obtained.
Explanation:
The basic and first medical care which is provided to a person who is suffering from a sudden injury or disease which can be serious or minor is called first aid. First aid is given to help and assist the victim until the proper medical care reached the victim.
In life-threatening conditions, first aid can help in preserving the life of that person. In non- life-threatening conditions first aid can help in preventing the worsening of the condition. CPR is one of the examples of first aid given to a person whose heart is not beating. So the correct answer is a.
