Which of the Following Could Be Used to Synthesize 2-Iodobutane $\equiv$

Which of the following could be used to synthesize 2-iodobutane?

A) CH₃CH₂CH $\equiv$ CH₂ + I₂ (aq) $\rightarrow$
B) CH₃CH₂C $\equiv$ CH₃ + HI $\rightarrow$
C) CH₃CH₂C $\equiv$ CH + HI $\rightarrow$
D) CH₃CH₂C $\equiv$ CH + I₂ $\rightarrow$
E) None of the above