Who wants to be my bf 16+ only

Consider their emotional maturity and sense of responsibility. For many kids, 16 seems to be an appropriate age, but it may be entirely suitable for a mature 15-year-old to go on a date, or to make your immature 16-year-old wait a year or two.

answer; i believe that the correct answers are ///train hospital staff on how to use new machinery and design an artificial lung that could be implanted in humans;