This question contains Statement-1 and Statement-2. Of the four choices given after the statements, choose the one that best describes the two statements. <br> Statement-1 : The temperature dependence of resistance is usually given as $R = R_o(1+ \alpha \Delta t)$. The resistance of a wire changes from $100 \Omega$ to $150 \Omega$ when its temperature is increased from $27^{\circ}C$ to $227^{\circ}C$. This implies that $\alpha = 2.5 \times 10^{-3} /^{\circ} C$. <br> Statement 2 : $R = R_i (1 + \alpha \Delta T)$ is valid only when the change in the temperature $\Delta T$ is small and $\Delta R= (R-R_o) < < R_o$.

Question

( A ) Statement-1 is true, Statement-2 is true, Statement-2 is the correct explanation of Statement-1.
( B ) Statement-1 is true, Statement-2 is false
( C ) Statement-1 is false, Statement-2 is true
( D ) Statement-1 is true, Statement-2 is true, Statement-2 is not the correct explanation of Statement-1.