Select the correct line of missing code to create an output of "hello." x = ("hello")
def printfunction():
print(x)
def returnfunction():
return x
def main():
p = printfunction()
r = returnfunction()
/**missing code**/

main()

A. print (p)
B. print (r)
C. return (p)
D. print (printfunction)

Which describes careers that have similar education requirements but different qualifications? product safety engineers and materials engineers industrial safety engineers and industrial health engineers quality control systems managers and inspectors industrial safety and health engineers and hand packers