In the root locus plot shown in the figure, the pole/zero marks and the arrows have been removed. Which one of the following transfer functions has this root locus?

\(\frac{{s + 7}}{{\left( {s + 1} \right)\left( {s + 2} \right)\left( {s + 4} \right)}}\)

\(\frac{{s + 1}}{{\left( {s + 2} \right)\left( {s + 4} \right)\left( {s + 7} \right)}}\)

\(\frac{{s + 4}}{{\left( {s + 1} \right)\left( {s + 2} \right)\left( {s + 7} \right)}}\)

\(\frac{{\left( {s + 1} \right)\left( {s + 2} \right)}}{{\left( {s + 7} \right)\left( {s + 4} \right)}}\)

In the root locus plot shown in the figure, the pole/zero marks and th

1.	In the root locus plot shown in the figure, the pole/zero marks and the arrows have been removed. Which one of the following transfer functions has this root locus?
A.	\(\frac{{s + 1}}{{\left( {s + 2} \right)\left( {s + 4} \right)\left( {s + 7} \right)}}\)
B.	\(\frac{{s + 4}}{{\left( {s + 1} \right)\left( {s + 2} \right)\left( {s + 7} \right)}}\)
C.	\(\frac{{s + 7}}{{\left( {s + 1} \right)\left( {s + 2} \right)\left( {s + 4} \right)}}\)
D.	\(\frac{{\left( {s + 1} \right)\left( {s + 2} \right)}}{{\left( {s + 7} \right)\left( {s + 4} \right)}}\)
Answer» C. \(\frac{{s + 7}}{{\left( {s + 1} \right)\left( {s + 2} \right)\left( {s + 4} \right)}}\)

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In the root locus plot shown in the figure, the pole/zero marks and the arrows have been removed. Which one of the following transfer functions has this root locus?

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