Which of the following compounds is resistant to nucleophilic attack by hydroxyl ions?

Which of the following compounds resists the reaction with the nucleophilic hydroxide ion?

Which of the following procedures would be best for the preparation of phenyl benzyl ether? $C_6H_5OCH_2C_6H_5$

Reactant $(A)$ is:

The following are possible syntheses of phenyl propyl ether. Which one would work?
$(i)$ $C_6H_5OH$ $\xrightarrow{KNH_2}$ $\xrightarrow{CH_3CH_2CH_2Br}$
(ii) $CH_3CH_2CH_2OH$ $\xrightarrow{NaOH}$ $\xrightarrow{C_6H_5Br}$
(iii) $CH_3CH_2CH_2OH$ $\xrightarrow{NaH}$ $\xrightarrow{C_6H_5Br}$

$A$ solution of $Ph_3CCO_2H$ in concentrated $H_2SO_4$ gives $(X)$ when poured into methanol. $X$ is