Answer
(d) $105^{\circ}C$
Work Step by Step
We convert all the temperatures to K and then compare them.
(a)217 K, (b) 273 K, and (e) 373 K are already in K.
(c) $217^{\circ}F$ can be converted to degree Celsius and then to K.
$^{\circ}C=\frac{^{\circ}F-32}{1.8}=\frac{217-32}{1.8}=103^{\circ}C=(103+273)K=376\,K$
(d) $105^{\circ}C=(105+273)K=378\,K$
378 K is the highest temperature. (d) is the correct option.
