What is the product formed when benzene diazonium chloride reacts with ethanol?

Which one of the following is the most basic compound?

What is the major product obtained from the following reaction?

In the following reaction,the major product $(P)$ formed is

$A$ solution contains $1 \ g \ mol$ each of $p-$toluene diazonium chloride and $p-$nitrophenyl diazonium chloride. To this,$1 \ g \ mol$ of alkaline solution of phenol is added. Predict the major product and explain your answer.

Which of the following undergoes nitration fastest?