Which transformations give us the graph of $y=2^{x^2-4x+3}$?

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The graph of the function \[y=2^{x^2-4x+3}\] can be obtained from the graph of \(y = 2^{x^2}\) by

1. a stretch parallel to the \(y\)-axis followed by a translation parallel to the \(y\)-axis.
2. a translation parallel to the \(x\)-axis followed by a stretch parallel to the \(y\)-axis.
3. a translation parallel to the \(x\)-axis followed by one parallel to the \(x\)-axis.
4. a translation parallel to the \(x\)-axis followed by a reflection in the \(y\)-axis.
5. a reflection parallel to the \(y\)-axis followed by a translation parallel to the \(y\)-axis.