Answer:
Option B is the correct answer.
Explanation:
We have X axis, Y axis and origin in coordinate plane.
Origin is the point for which both x and y coordinate is zero.
X axis is the set of all points with y- coordinate zero.
Y axis is the set of all points with x- coordinate zero.
Here we are asked to find the common term for the set of all points with x- coordinate zero.
That is Y axis
Option B is the correct answer.