Read the following statements: A. When small temperature difference between a liquid and its surrounding is doubled, the rate of loss of heat of the…

Read the following statements : A. When small temperature difference between a liquid and its surrounding is doubled, the rate of loss of heat of the liquid becomes twice. B. Two bodies $\displaystyle P$ and $\displaystyle Q$ having equal surface areas are maintained at temperature $\displaystyle 10^{\circ} \mathrm{C}$ and $\displaystyle 20^{\circ} \mathrm{C}$. The thermal radiation emitted in a given time by $\displaystyle P$ and $\displaystyle Q$ are in the ratio $\displaystyle 1$:1.15. C. A Carnot Engine working between $\displaystyle 100$ K and $\displaystyle 400$ K has an efficiency of $\displaystyle 75 \%$. D. When small temperature difference between a liquid and its surrounding is quadrupled, the rate of loss of heat of the liquid becomes twice.Choose the correct answer from the options given below :