Which Order of Reactions Would Most Effectively Convert Trans-2-Butene into 1-Butene

Multiple Choice

Which order of reactions would most effectively convert trans-2-butene into 1-butene?

A) convert to the gem-dibromoalkane, then to the terminal alkyne, then to the terminal alkene
B) convert to an alcohol, then to a terminal alkyne, finally to the terminal alkene
C) convert to the terminal alkene in one step
D) shorten the chain by two carbons, then add a two-carbon alkene to the end
E) convert to an alkane, then to a terminal alkyne, and finally to a terminal alkene