The lowest degree in numerator polynomial and denominator polynomial

the-lowest-degree-in-numerator-polynomial-and-denominator-polynomial

The lowest degree in numerator polynomial and denominator polynomial in a driving point function may differ by at most __________

A. 0

B. 1

C. 2

D. 3

I had been asked this question in class test.

The query is from Properties of Transfer Functions in portion S-Domain Analysis of Network Theory

Right answer is B. 1

The best explanation: The lowest degree in numerator polynomial and denominator polynomial in a driving point function may differ by at most one and the coefficients in the polynomials P(s) and Q(s) of network function must be real and positive.