why DoEs thE Author mEntion thE ExAmplE oF pAstEur A.to prEDiCt thAt thE sECrEt oF CAnCEr will BE DisClosED in A DECADE. B.to inDiCAtE thAt thE prospECts For Curing CAnCEr ArE Bright. C.to provE thAt CAnCEr will BE Cum in FiFty to sixty yEArs. D.to wArE thAt thErE is still A long wAy to go BEForE CAnCEr CAn hE ConquErED.