A circular loop wire with current $I_{1} = \frac{I_{\circ}}{π}$ $I_1 = I_@/pi$ and a V shaped wire with current $I_{2}$ $I_2$ are arranged in a plane as shown in diagram. If magnetic field at O is zero, value of $I_{2}$ $I_2$ is ? (a) $13 a \frac{I_{\circ}}{35} r$ $13aI_@/35r$ (b) $12 a \frac{I_{\circ}}{17} r$ $12aI_@/17r$ (c) $a \frac{I_{\circ}}{r}$ $aI_@/r$ (d) $12 a \frac{I_{\circ}}{35} r$ $12aI_@/35r$