You have a white crystalline solid, known to be one of the potassium compounds listed below. To determine which, you measure its density. You measure out 18.82 g and transfer it to a graduated cylinder containing kerosene (in which these compounds will not dissolve). The level of liquid kerosene rises from 8.5 mL to 15.3 mL. Calculate the density of the solid, and identify the compound from the following list. 

(a). KF, d = 2.48 g/cm³

(b). KCl, d = 1.98 g/cm³

(c). KBr, d = 2.75 g/cm³

(d). KI, d = 3.13 g/cm³