R-0 is a mathematical term that indicates how contagious a disease is that is infectious. It’s the reproduction number.
By smiling(smiling releases <span>endorphins</span>), and also do something they like!
A hypothesis is an educated guess about how things work. It is an attempt to answer your question with an explanation that can be tested
It would be C, gender and size. Smaller people have higher blood alcohol concentration, which is how much alcohol is in the bloodstream, compared to larger people. Also, females reach higher blood alcohol concentration faster than males because they have less water in their bodies to dilute it and less enzymes to break it down. Hope this helps!
