Considering the historians use of source material, which interpretation is most valid

Who's idea was it for businessmen to use their wealth for the greater good of society? (gospel of wealth ~ap u.s. history

How are the perspectives presented in the excerpts similar? they show the disappointment and fear mission control workers feel when the lunar module develops problems. they show the huge investment of time and energy mission control workers dedicated to the lunar module. they show how mission control workers view the lunar module as if it is the workers' very own child. they show the relief and excitement mission control workers feel when the lunar module lands on the moon.

In an industry in which there are several providers of a type of good, why can one business not charge much higher prices for their goods?