3. Identify the independent variable: A scientist wanted to see if temperature affected the male/female ratio in alligator eggs. She took 5 clutches of eggs and placed them in different incubators. Each incubator had a temperature 5 degrees different from the other. Each had a humidity of 87% and received 16 hours of simulated sunlight.

A. 16 hours of sunlight
B. Temperatures
C. 87% humidity