Develop syntheses for the following compounds, using acetylene and compounds containing no more than four carbon atoms

Question:

Develop syntheses for the following compounds, using acetylene and compounds containing no more than four carbon atoms as your organic starting materials.
(a) 3-methylnon-4-yn-3-ol ("3-ol" means there is an OH group on C3.)
(b) cis-1-ethyl-2-methylcyclopropane
(c)