Answer;
A. A point has no dimension, but a line has length as a dimension to measure.
Step-by-step explanation;
A point in geometry is a location. It has no size i.e. no width, no length and no depth. A point is shown by a dot.
A line is defined as a line of points that extends infinitely in two directions. It has one dimension, length. Points that are on the same line are called collinear points. A line is defined by two points