Curt CArlson, thE wEAlthiEst mAn in minnEsotA, ownED A hotEl AnD trAvEl CompAny with sAlEs rEAChing in thE nEighBorhooD oF $9 Billion.
A．prECisEly
B．mErEly
C．suBstAntiAlly
D．ApproximAtEly