What are the protein requirements for Liz and Larry based upon the information provided and their athletic status?

Liz is a 20-year-old female who is 5’ 2” tall and weighs 103 pounds. She is following her dream of becoming a professional dancer, which means she has a very active activity level. She knows she is not overweight by health charts, but she cannot help comparing herself to the other dancers who all seem leaner. Her friend Sylvie has been successful in losing weight and gaining muscle while following a high protein diet. Liz decides to try it.