Answer:
a, b, &c
Step-by-step explanation:
a - its says generally meaning if your not varified in a special department all you need is a high school diploma or equivalent
b- in the 4th row in says both of them work with variety of skill levels and ages
c- fitness trainers have flexiable hours meaning they could work on weekends and/or holidays where as coaches only work 40 hrs per week during sports season (not holdidays nor weekends)
NOT D because coaches travel but no where does it say fitness trainers do too