Which of the following is a secondary allylic alcohol?

When ethyl bromide is treated with moist $Ag_2O$,the main product is:

Ethyl alcohol on heating with conc. $H_2SO_4$ gives

The major product formed in the following reaction: $CH_3CH(Cl)CH_2CH_2OH \xrightarrow{Aq. KOH}$ is

Given below are two statements :
Statement $I$ :
In Lucas test,primary,secondary and tertiary alcohols are distinguished on the basis of their reactivity with conc. $HCl + ZnCl_{2}$,known as Lucas Reagent.
Statement $II$ :
Primary alcohols are most reactive and immediately produce turbidity at room temperature on reaction with Lucas Reagent.
In the light of the above statements,choose the most appropriate answer from the options given below :

$CH_2 = CH_2$ $\xrightarrow{HBr} X$ $\xrightarrow{\text{Hydrolysis}} Y$ $\xrightarrow[I_2 \text{ excess}]{Na_2CO_3} Z$. What is $Z$ in the given reaction?