题目内容：
根据以下材料回答题 Parentsnowhaveapopularbeliefthatschoolsarenolongerinterestedinspelling．NoschoolIhavetaughtinhaseverignoredspellingorconsidereditunimportantasabasicskill．Thereare,however,greatlydifferentideasabouthowtoteachitorhowmuchpriority((优先)itmustbegiv-enovergenerallanguagedevelopmentandwritingability．Theproblemisthathowtoencourageachildtoexpresshimselffreelyandconfidentlyinwritingwithoutholdinghimbackwiththecom-plexitiesofspelling．
Ifspellingbecomestheonlyfocalpointofhisteacher'sinterest,clearlyabrightchildwillbelikelyto"playsafe"．Hewillbepronetowriteonlywordswithinhisspellingrange,choosingtoa-voidadventurouslanguage．That'swhyteachersoftenencouragetheearlyuseofdictionariesandpayattentiontocontentratherthantechnicalability．
Iwasonceshockedtoreadonthebottomofasensitivepieceofwritingaboutapersonalexpe-rience:"Thisworkisterrible[Therearefartoomanyspellingerrorsandyourwritingisillegible(难以辨认的)．"Itmayhave．beenasharpcriticismofthepupil'stechnicalabilitiesinwriting,butitwasalsoasadreflectionontheteacherwhohadomittedtoreadtheessay,whichincludedsomebeautifulexpressionsofthechild'sdeepfeelings．Theteacherwasnotwrongtodrawattentiontotheerrors,butifhisprioritieshadcentredonthechild'sideas,anexpressionofhisdisappointmentwiththepresentationwouldhavegiventhepupilmoremotivation(动力)toseekimprovement．
Teachersaredifferentintheiropinionsabout A．thedifficultiesinteachingspelling．
B．theroleofspellingingenerallanguagedevelopment．
C．thecomplexitiesofthebasicwritingskills．
D．thenecessityofteachingspelling．
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答案解析：