Which statement about business intelligence is accurate?

A、Intelligencegatheringisanunethicalbusinesspractice.;
B、Businessintelligenceisnotequaltoespionage.;
C、Runninganintelligenceprogramrequiresmanycomputersandotherresources.;
D、Collectingintelligenceaboutcompetitorsviolatesantitrustlaws.