Correct Answer - C
`underset(1^@"alcohol"" "Aldehyde")(RCH_2OHunderset(Delta)overset(Cu)rarrRCHO)`
`underset(2^@ "alcohol")(R-overset(OH)overset(|)CH)-Runderset(Delta)overset(Cu)rarrunderset("Aldehyde")(R-overset(O)overset(||)C-R)`
`underset(3^@"alcohol" " " "alken")(CH_3-underset(CH_3)underset(|)overset(CH_3)overset(|)C-OHunderset(Delta)overset(Cu_3)rarrCH_3-overset(CH_3)overset(|)C=CH_2)`