The Aroma from Almonds and Cherries Is Due in Part

The aroma from almonds and cherries is due in part to a compound called benzaldehyde. A graph of the natural logarithm of the vapor pressure of benzaldehyde vs. 1/temperature produces a straight line with a slope of -5870.99 K. What is the enthalpy of vaporization of benzaldehyde?

A) +473 kJ/mol
B) -47.3 kJ/mol
C) +47.3 kJ/mol
D) -48.8 kJ/mol
E) +48.8 kJ/mol