Jamie is a hairstylist who works in a salon. he noticed that when many of the stylists are blow drying hair the power goes out. what is the best scientific question that can be asked about jamie’s observations?

a)should the salon create a schedule to allow only a certain number of blow dryers running at once?
b)what is the most energy-efficient blow dryer on the market?
c)should the salon’s wiring be checked by an electrician?
d)does the power go out when a certain number of blow dryers run at the same time?