请阅读Passage2,完成题: Abigfocusofthecriticismofcomputergameshasconcernedthecontentofthegamesbeingplayed.Whenthenarrativesofthegamesareanalyzedtheycanbeseentofallintosomegenres. ThetwogenresmostpopularwiththechildrenIinterviewedwere'Plafformers'and'Beat-them-ups'.PlatformgamessuchasSonicandSuperMarioinvolveleapingfromplatformtoplatform,avoidingobstacles,movingonthroughthelevels,andprogressingthroughthedifferentstagesofthegame.Beat-them-upsarethegameswhichhavecausedconcernovertheirviolentcontent.Thesegamesinvolvefightsbetweenanimatedcharacters.Inmanywaysthisviolencecanbecomparedtoviolencewithinchildren'scartoonswhereacharacterishitovertheheadorfallsofacliffbutwalksawayunscathed. Controversyhasoccurredinpartbecauseoftheintensityofthegameplay,whichissaidtospilloverintochildren'severydaylives.Thereareworriesthatchildrenarebecomingmoreviolentandaggressiveafterprolongedexposuretothesegames.Playingcomputergamesinvolvesfeelingsofintensefrustrationandangerwhichoftenexpressesitselfinaggressive'yells'atthescreen.Itisnotonlythe'Beat-them-up'gameswhichproducethisaggression;platformgamesarejustasfrustratingwhenthecharacterslosealltheir'lives'and'die'justbeforetheendofthelevelisreached.Computergamingreliesuponintenseconcentrationonthemovingimagesonthescreenanddemandsgreathand-to-eyecoordination.Whentheplayerlosesandthewords'Gameover'appearonthescreen,thereisannoyanceandfrustrationatbeingbeatenbythecomputerandathavingmadeanerror.Thisangerandaggressioncouldperhapsbecomparedtotheaggressionfeltwhenplayingfootballandyoutakeyoureyeofftheballandenabletheoppositiontoscore.Theannoyanceexperiencedwhendefeatedatacomputergameiswhatmakesgaming'addictive':theplayerisdeterminednottomakethesamemistakeagainandtohave'onelastgo'inthehopeofdoingbetternexttime. Someoftheconcernovertheviolenceofcomputergameshasbeenaboutchildrenwhoareunabletotellthedifferencebetweenfictionandrealityandwhoactouttheviolentmovesofthegamesinfightontheplayground.Theproblemwithvideogamesisthattheyinvolvechildrenmorethantelevisionorfilmsandthismeanstherearemoreimplicationsfortheirsocialbehavior.Playingthesegamescanleadtoanti-socialbehavior,makechildrenaggressiveandaffecttheiremotionalstability. Whatisthetopicofthisarticle? 查看材料
A.How does playing computer games affect the level of violence in children. B.There is no difference between Platform games and 'Beat-Them-Ups'. C.How to control anger while playing computer games. D.How to make children spend less time on computer games.正确答案A