Correct Answer - D
W is the temperature on new scale corresponding, to `39^(@)C` on `.^(@)C` scale.
`"S,=o, "(C-0)/(100-0)=(W-39)/(239-39)`
`rArr" "(C)/(100)=(W-39)/(200)`
`"or "w=(C)/(100)xx200+39`
`=(39)/(100)xx200+39=78+39=117`
So, temperature on new scale is `117^(@)W` corresponding to `39^(@)C`