A Teacher States That the Students Who Made the Highest

Multiple Choice

A teacher states that the students who made the highest grades on the English test also made the highest grades on the history test and the ones that made the lowest on one test made the lowest on the other. She was probably able to make this statement because she

A) conducted a controlled experiment with the class.
B) correlated the scores on the two tests.
C) surveyed the students.
D) observed the students as they took the test to make sure no one cheated.