What is the bond dissociation energy of $HCl?( \Delta H_f^o\: of\: HCl(g), H(g), Cl(g) \: are\: -92.2, 217.7\: and\: 121\: kJ/mol$ respectively)

Question

$\begin {array} {1 1} (a)\; -430.9kJ/mol & \quad (b)\; 430.9kJ/mol \\ (c)\;246.5kj/mol & \quad (d)\;-246.5kj/mol \end {array}$