IUPAC name of  ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{OH}=\stackrel{\stackrel{{\mathrm{CH}}_3}{|}}{\mathrm{C}}-{\mathrm{CH}}_2\mathrm{OH} \mathrm{is}$

Compound have ‘5’ carbons, 2nd ‘C’ have methyl group as a substituent and same ‘C’ have double bond and 1st ‘C’ has – OH functional group.