Consider that the minimum of a function refers to the point where the function reaches a minimum value.
These minimum values and points can be observed as the deepest point of a trough or valley formed by the curve of the given function.
Now, observe the given graph carefully.
There is only one trough formed by the curve of the function.
And the deepest point of the trough is (1.75, - 1.125).
Therefore, the minimum of the given function occurs at,
Thus, the first option is the correct choi