Point c has the coordinates (-1, 4) and point d has the
coordinates (2,0). what is the distance between points
c and d?

For this case we have that the distance between two points is given by the following formula:

We have the following points:

Substituting we have:

Thus, the distance between the points is 5 units.

you didn't give me the choices, so i will just give you the graph so you can look at your choices and choose the right one.