Which of the following is vinylic alcohol?

The correct combination of names for isomeric alcohols with molecular formula $C_4H_{10}O$ is/are:
$A$. tert-butanol and $2$-methylpropan$-2$-ol
$B$. tert-butanol and $1,1$-dimethylethan$-1$-ol
$C$. $n$-butanol and butan$-1$-ol
$D$. isobutyl alcohol and $2$-methylpropan$-1$-ol

The $IUPAC$ name of the following compound is:

Provide the common and $\text{IUPAC}$ names for the following alcohols:
$(i) \ CH_3OH$
$(ii) \ CH_3CH_2CH_2OH$
$(iii) \ CH_3CH(OH)CH_3$
$(iv) \ CH_3CH_2CH_2CH_2OH$
$(v) \ CH_3CH(OH)CH_2CH_3$
$(vi) \ (CH_3)_2CHCH_2OH$
$(vii) \ (CH_3)_3C-OH$
$(viii) \ HOCH_2CH_2OH$
$(ix) \ CH_2OHCH(OH)CH_2OH$
$(x) \ CH_3CH_2OH$

In phenols,

Diethyl ether is a metamer of which of the following?