The synthesis of 3-octyne is achieved by adding a bromoalkane into a mixture of sodium amide and an alkyne. The bromoalkane and alkyne respectively are

A

$$BrCH_{2}CH_{2}CH_{2}CH_{2}CH_{3}$$ and $$CH_{3}CH_{2}C\equiv CH$$

B

$$BrCH_{2}CH_{2}CH_{3}$$ and $$CH_{3}CH_{2}CH_{2}C\equiv CH$$

C

$$BrCH_{2}CH_{2}CH_{2}CH_{2}CH_{3}$$ and $$CH_{3}C\equiv CH$$

D

$$BrCH_{2}CH_{2}CH_{2}CH_{3}$$ and $$CH_{3}CH_{2}C\equiv CH$$