Find the inverse z-transform of \(X\left( z \right) = \frac{1}{{\left( {1 - 0.25{z^{ - 1}}} \right)}}\)
1
\({\left( {\frac{1}{4}} \right)^n}u\left[ { - n + 1} \right]\)
2
\({\left( {\frac{1}{2}} \right)^n}\)
3
\({\left( {\frac{1}{4}} \right)^n}u\left[ n \right]\)
4
\({\left( {\frac{1}{2}} \right)^{ - n}}u\left[ { - n} \right]\)