Gravitation

Match List I with List II : .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10px 5px;word-break:normal;} .tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;} .tg .tg-c3ow{border-color:inherit;text-align:center;vertical-align:top} .tg .tg-7btt{border-color:inherit;font-weight:bold;text-align:center;vertical-align:top} .tg .tg-0pky{border-color:inherit;text-align:left;vertical-align:top} LIST I LIST II A. Kinetic energy of planet I. $$-\mathrm{GMm} / \mathrm{a}$$ B. Gravitation Potential energy of sun-planet system II. $$\mathrm{GMm} / 2 \mathrm{a}$$ C. Total mechanical energy of planet III. $$\frac{\mathrm{Gm}}{\mathrm{r}}$$ D. Escape energy at the surface of planet for unit mass object IV. $$-\mathrm{GMm} / 2 \mathrm{a}$$ (Where $$\mathrm{a}=$$ radius of planet orbit, $$\mathrm{r}=$$ radius of planet, $$\mathrm{M}=$$ mass of Sun, $$\mathrm{m}=$$ mass of planet) Choose the correct answer from the options given below :