题目内容：
Questionsarebasedonthefollowingpassage: Somepsychologists(心理学家)maintainthatmentalactssuchasthinkingarenotperformedinthebrainalone,butthatone'smusclesalsoparticipate．Itmaybesaidthatwethinkwithourmusclesinsomewhatthesamewaythatwelistentomusicwithourbodies.
Yousurelyarenotsurprisedtobetoldthatyouusuallylistentomusicnotonlywithyourearsbutwithyour.wholebody．Fewpeoplecanlistentomusicwithoutmovingtheirbodyor,morespecifically,somepartoftheirbody．Oftenwhenonelistenstoasymphonicconcertontheradio,heisattractedtodirecttheorchestra(乐队)eventhoughheknowsthereisagoodconductoronthejob.
Strangeasthisbehaviormaybe,thereisaverygoodreasonforit．Onecannotderiveallpossibleenjoymentfrommusicunlessheparticipates,sotospeak,initsperformance．Thelistener"feels"himselfintothemusicwithmoreorlessnoticeablemotionsofhisbody.
Themusclesofthebodyactuallyparticipateinthementalprocessofthinkinginthesameway,butthisparticipationislessobviousbecauseitislessnoticeable.
Somepsychologiststhinkthatthinkingis__________. A．notamentalprocess
B．moreofaphysicalprocessthanamentalaction
C．aprocessthatinvolvesourentirebodies
D．aprocessthatinvolvesthemusclesaswellasthebrain
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答案解析：