Aşağıdaki moleküllerden hangisinin IUPAC adı 4-metil-2-hekzin'dir?
A) $CH_3-C\equiv C-CH(CH_3)-CH_2-CH_3$
B) $CH_3-CH_2-C(CH_3)-C\equiv C-CH_3$
C) $CH_3-CH(CH_3)-C\equiv C-CH_2-CH_3$
D) $CH_3-C\equiv C-CH_2-CH(CH_3)-CH_3$
E) $CH_3-CH_2-CH(CH_3)-C\equiv C-CH_3$
