题目内容：
根据以下材料，回答题
PromisingResultsfromCancerStudy
Anewexperimentalvaccinehasshownpromisingresultsinthefightagainstlungcancer.InasmallTexas-basedstudy,avaccinedevelopedbyscientistsatBaylorUniversityMedicalCentreinDallas,USAcuredlungcancerinsomepatientsandslowedtheprogressofthediseaseinothers.
Researchershavereportedencouragingfindingsfromthissmallstudy.Forty-threepatientssufferingfromlungcancerwereinvolvedinthesetrials.Tenofthesepatientswereintheearlystagesandthirty-threeintheadvancedstagesofthedisease.Theywereinjectedwiththevaccineeverytwoweeksforthreemonths,andwerecarefullymonitoredforthreeyears.Inthreeofthepatientsintheadvancedstagesofcancer,thediseasedisappearedandintheothers,itdidnotspreadforfivetotwenty-fourmonths.However,nogreatdifferencewasseeninthepatientsintheearlystagesoftheillness.
Thisnewvaccineusesthepatient'sownimmunesystem.Itismadespecificallyforeachpatientandisinjectedintothearmorleg.Itstimulatesthebody'simmunesystem,whichthenrecognizesthatthecancercellsareharmful,andattacksanddestroysthem.
Thevaccinecouldbeeffectiveagainstotherformsofcancer.Itoffersgreathopeforthetreatmentofcanceringeneral,althoughfurtherstudiesareneededbeforesuchtreatmentcanbewidelyused.
Thevaccinecuredalltheparticipantsinthetrial. A．Right
B．Wrong
C．Notmentioned
参考答案：
答案解析：