The correct options for the products A and B of the following reactions are:

When the reaction is carried out in solvents of low polarity such as ${\mathrm{CHCl}}_3$ or ${\mathrm{CS}}_2$ and at low temperature, monobromophenols are formed. 

When phenol is treated with bromine water,$2,4,6-$ tribromophenol is formed as white precipitate.