Describing Transformations of Quadratic Functions

We want to match the given function with its graph. We will begin by noticing that the function is a transformation of the form $y=a(x-{\color{#0000FF}{h}})^2+{\color{#009600}{k}},$ where ${\color{#0000FF}{h}}$ represents a horizontal translation and ${\color{#009600}{k}}$ represents a vertical translation. $\begin{gathered} y=(x-{\color{#0000FF}{1}})^2 \end{gathered}$ In our case, we have ${\color{#0000FF}{h}}={\color{#0000FF}{1}}.$ This means that the graph of $y=(x-1)^2$ is obtained by translating the graph of $y=x^2$ by ${\color{#0000FF}{1}}$ unit to the right.

Thus, we conclude that the correct answer is option B.