题目内容：
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Back in the early 1990s，I knew little about computers beyond what it took to get through a working day．But here’s what I did know：something huge was happenin9．It was stirring economies and imaginations and possibilities like nothing I had ever known．I knew the world was changing in ways that meant I shouldn’t count on old assumptions．And I knew I had dreams I still hadn’t fulfilled.But I didn’t know how to realize them until I met with my old friend，Rollys Rouse，when we happened to move into the same neighborhood．
Rolly often called me with a stream of ideas．His rate of idea production per second seemed al- most incredible．Soon we were on the phone with each other every day．Talking about the Internet．TalMng about starting a new online company-maybe together．
He was then developing a plan and he wanted me to be a part of it：we would give people wonderful，whole electronic houses on a CD-ROM and let them modify those homes to their own needs．Try out different windows and doors，different paint colors and furnishings．When they were satisfied，we would enable them to go online to make the project happen，to get the products
and the financing and the。professional design and construction to help to do it outright．
BuildingBlocks was the name Rolly came up with for his new enterprise．Rolly took the plunge first．He simply dropped his profitable energy—consulting business to commit himself full time to BuildingBlocks．I soon joined him after I quit my well—paid job at a newspaper．
Together we developed a demo to show the features of our CD—ROM，“The New American Dream Home”．Then we took it to the annual convention of the National Association of Home Builders in Boston．All the big companies were there showing off their。latest products．
To our delight，nearly everyone was eager to see what we were showin9，．including the top executives of some enormous companies．When we left，we had invitations from them to come to their offices to tell them more about BuildingBlocks.
That was the start of my real lifetime dream and BuildBlocks，our company，has been prospering ever since．
回答题：
By“something huge was happenin9”，the writer refers to_________． A．house designing
B．home decoration
C．furniture production
D．high-tech development
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