Which of the following graphs show a function which is one-to-one?

Select all correct answers.

Select all that apply:

A. A coordinate plane has a horizontal x-axis and a vertical y-axis. From left to right, a curve rises at a decreasing rate in quadrant 3, crosses the negative x-axis and the positive y-axis, and then continues to rise at an increasing rate in quadrant 1.

B. A coordinate plane has a horizontal x-axis and a vertical y-axis. A parabola that opens downward has its vertex in quadrant 4 and crosses the negative y-axis.

C. A coordinate plane has a horizontal x-axis and a vertical y-axis. From left to right, a curve rises in quadrant 2 , crosses the positive y-axis, and then continues to rises in quadrant 1.

D. A curve on a coordinate plane. A coordinate plane has a horizontal x-axis and a vertical y-axis. From left to right, a curve rises in quadrant 3, crosses the negative x-axis into quadrant 2 briefly, falls back into quadrant 3, crosses the negative y-axis, the positive x-axis, and then continues to rise in quadrant 1.