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根据以下材料，回答题
OntheTrialoftheHoneyBadger
OnarecentfieldtriptotheKalahariDesert,ateamofresearcherslearntalotmoreabouthoneybadgers(獾).Theteamemployedalocalwildlifeexpert,KitsoKhama,tohelpthemlocateandfollowthebadgersacrossthedesert.Theirmainaimwastostudythebadgers'movementsandbehaviorasdiscreetly(谨慎地)aspossiblefrighteningthemawayorcausingthemtochangetheirnaturalbehavior.Theyalsoplannedtotrapafewandstudythemcloseupbeforereleasingthem.Inviewoftheanimal'sreputation,thiswassomethingthatevenKhamawasreluctanttodo.
"Theproblemwithhoneybadgersisthattheyarenaturallycuriousanimals,especiallywhentheyseesomethingnew,"hesays."That,combinedwiththeirunpredictablenature,canbeadangerousmixture.Iftheysenseyouhavefood,forexample,theywon'tbeshyaboutcomingrightuptoyouforsomethingtoeat.They'reactuallyquitesociablecreaturesaroundhumans,butassoonastheyfeeltheymightbeindanger,theycanbecomeextremelyvicious(凶恶的).
Fortunatelythisisrare,butitdoeshappen."
Theresearchconfirmedmanythingsthatwerealreadyknown.Asexpected,honeybadgersateanycreaturestheycouldcatchandkill.Evenpoisonoussnakes,fearedandavoidedbymostotheranimals,werenotsafefromthem.Theresearchersweresurprised,however,bytheanimal'sfondnessforlocalmelons,probablybecauseoftheirhighwatercontent.Previouslyresearchersthoughtthattheanimalgotallofitsliquidrequirementsfromitsprey(猎物).Theteamalsolearntthat,contrarytopreviousresearchfindings,thebadgersoccasionallyformedloosefamilygroups.
Theywerealsoabletoconfirmcertainresultsfrompreviousresearch,includingthefactthatfemalebadgersneversocialisedwitheachother.
Followingsomeofthemalebadgerswasachallenge,sincetheycancoverlargedistancesinashortspaceoftime.Somehuntingterritoriescovermorethan500squarekilometers.Althoughtheyseemhappytosharetheseterritorieswithothermales,thereareoccasionalfightsoveranimportantfoodsource,andmalebadgerscanbeasaggressivetowardseachotherastheyaretowardsotherspecies.
Asthebadgersbecameaccustomedtothepresenceofpeople,itgavetheteamthechancetogetupclosetothemwithoutbeingthesubjectoftheanimals'curiosity--orasuddenaggression.
Thebadgers'eatingpatterns,whichhadbeendisrupted,tonormal.Italsoallowedtheteamtoobservemorecloselysomeofthecreaturesothercreaturesthatformworkingassociationswiththehoneybadger,astheseseemedtobadgers'relaxedattitudewhennearhumans.
WhydidthewildlifeexpertsvisittheKalahariDesert? A．Tofindwherehoneybadgerslive.
B．Toobservehowhoneybadgersbehave.
C．Tocatchsomehoneybadgersforfood.
D．Tofindoutwhyhoneybadgershaveabadreputation.
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