The missing reagents \[{{R}_{1}}\] and \[{{R}_{2}}\] in the following – McqOptions

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1.	The missing reagents \[{{R}_{1}}\] and \[{{R}_{2}}\] in the following series of reactions are \[C{{H}_{3}}C{{H}_{2}}Br\xrightarrow{{{R}_{1}}}[\,\,\,\,]\xrightarrow{{{R}_{2}}}C{{H}_{3}}\overset{-}{\mathop{C}}\,H{{P}^{+}}P{{h}_{3}}\]
A.	PhLi and \[P{{h}_{3}}P\] respectively
B.	\[P{{h}_{3}}P\] and PhLi respectively
C.	\[P{{h}_{3}}P\] and \[{{C}_{2}}{{H}_{5}}ONa\] respectively
D.	Either [b] or [c]
Answer» E.

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