Fluorobenzene $(C_6H_5F)$ can be synthesized in the laboratory :

Question

( A ) by reacting bromobenzene with $NaF$ solution
( B ) by direct fluorination of benzene with $F_2$ gas
( C ) from aniline by diazotisation followed by heating the diazonium salt with $HBF_4$
( D ) by heating phenol with $HF$ and $KF$