You could drown by such a small amount of water during certain circumstances that doing stuff in or around water alone increases risk of harm. There wouldn’t be anyone that could pull you from the water, do CPR, call an ambulance, protect you and try to keep you warm.
It doesn’t matter if you’ve done it a hundred times, there is always a risk.
A. Age
Age is the best answer because it is easily determined and since there are stages of development, age can tell staff other things such as coordination level, ability and risk of getting hurt.
I'll go through the other answers briefly.
B. Intelligence. Intelligence is a fair enough answer, save for the fact that it is something that is not easy to determine quickly and hence, it would be difficult to determine each child's intelligence before they came into the daycare. Furthermore, intelligence or lack thereof does not necessarily mean that the child does not need as much supervision.
C. Previous training. This is not the correct answer because it is the previous training "of the children cared for." The children do not need to have previous training. It could work as an answer if it were in relation to the workers, not the children.
D. Coordination. Somewhat of a good answer. However, once again, coordination is not an easy determinant, and cannot always reliably predict how many staff should be with how many children.
Weightlifters usually take a "pre-workout" which is suppose to basically give them energy. its almost like taking redbull in a way. but this supplement isnt for everyone. some people get a really upset stomach and also can cause diarrhea
The Food and Drug Administration food code requires food preparation equipment to be certified or classified for
sanitation by the American
National Standards Institute (ANSI). This is to ensure that the equipment or
products associated with food processing and storage used by restaurants,
hotels, food chains and others has
been tested and certified to the applicable Food Equipment Standard.