Geometry

When naming a plane, we should use 3 noncollinear points or a single capital letter (usually in non-cursive form). The option that best fits the given choices is "3 noncollinear points".

Here's an analysis of each option:

A.2 points: Two points determine a line, not a plane. So using only two points is not sufficient to uniquely name a plane as there are infinitely many planes that can pass through a given line (determined by two points).

B.3 points: While it is true that we need 3 points to define a plane, they must be noncollinear. If the three points are collinear, they do not define a unique plane, so simply saying "3 points" is not accurate enough; they have to b...