Answer
d. on the y-axis and $\frac{3}{4}$ unit below the x-axis
Work Step by Step
An ordered pair is in the form (x,y), where x describes the distance between the point and the y-axis and y describes the distance between the point and the x-axis.
Therefore, the point (0,$-\frac{3}{4}$) will lie on the y-axis and $\frac{3}{4}$ negative unit from (or $\frac{3}{4}$ below) the x-axis.