Sally Is Enrolled in a High School Geometry Course, Which

Sally is enrolled in a high school geometry course, which she describes as "drawing figures and figuring drawings." In a typical class, students draw geometric figures and use a formula to calculate an aspect of the figure such as its area. Each time Sally uses a formula, she is making use of what psychologists call

A) heuristics.
B) logarithms.
C) algorithms.
D) convergence.
E) divergence.