Which is a true statement about computer use during the 1980's? a) during the 1980's, home computers became readily available and affordable and they revolutionized many aspects of home and family life. b) during the 1980's, home computer systems were so expensive that only the wealthiest americans could afford them. c) home computers had not been introduced yet; computers were only used in the workplace during the 1980's. d) home computers were not on the market yet; americans who used computers had to build their own systems.