A mercury thermometer is transferred from melting ice to hot liquid . The mercury rises $\;\large\frac{9}{10}\;$ of the distance between the lower fixed point and the upper fixed point . The temperature of the liquid is $\;^{0}C\;$ is

Question

$(a)\;90^{0}C\qquad(b)\;94^{0}C\qquad(c)\;45^{0}C\qquad(d)\;491^{0}F$