One type of airway resistance in human lungs can be approximated using the equation R = 8Ln where R is the resistance, L is the length of the airway, n is the gas viscosity, and r is the radius of the airway. (a) True or False: If we consider R as a function of r, then the semi-log plot of R is linear. (b) True or False: If we consider R as a function of r, then the double-log plot of R is linear. (c) If L = 1 and n = 1.237, what is the instantaneous rate of change of R with respect to r when r = 2? Enter your answer numerically, rounded to 3 decimal places if rounding is required