Resistances \[{{R}_{1}}\] and \[{{R}_{2}}\] are joined in parallel and a current is passed so that the amount of heat liberated is \[{{H}_{1}}\] and \[{{H}_{2}}\] respectively. The ratio \[\frac{{{H}_{1}}}{{{H}_{2}}}\] has the value [MP PMT 1994]

• A.            \[\frac{{{R}_{2}}}{{{R}_{1}}}\]                                           
• B.            \[\frac{{{R}_{1}}}{{{R}_{2}}}\]
• C.            \[\frac{R_{1}^{2}}{R_{2}^{2}}\]                                       
• D.            \[\frac{R_{2}^{2}}{R_{1}^{2}}\]