The plot below reports on the x-axis whether the police officer wears a body camera (0 for No, and 1 for Yes), and on the y-axis the number of complaints received by a police officer. The color of the points indicates the officer's age, with black being age 20, gray being age 30, and white being age 40. The slope of the line in the plot is the association between X and Y without any controls.

The association between wearing a body camera and the number of complaints will be ___ when controlling for the age of the officer.

Group of answer choices

A. positive

B. negative

C. zero