If one variable changes systematically as the other changes, the variables are said to be which of the following?

A) identical
B) related
C) dependent
D) spurious

Spurious

The relationship between an independent variable and a dependent variable is said to be spurious when a control variable causes change in both the independent and dependent variables.

Systematically

Done or conducted using a thorough, efficient, and methodical approach.

Variable

An element, feature, or factor that is liable to vary or change, often used in scientific research to measure and analyze differences.