Which of the following transfer functions is a non-minimum phase transfer function?
1
\(\frac{{\left( {s + 1} \right)}}{{\left( {s + 2} \right)\left( {s + 3} \right)\left( {s + 4} \right)}}\)
2
\(\frac{{\left( {s + 1} \right)\left( {s + 2} \right)}}{{s\left( {s + 3} \right)\left( {s + 4} \right)}}\)
3
\(\frac{{10\left( {s + 1} \right)}}{{{s^2}\left( {s + 3} \right)}}\)
4
\(\frac{{s - 1}}{{\left( {s + 2} \right)\left( {s + 3} \right)}}\)