Kathy Is Conducting an Experiment to Test the Impact of Mindfulness

Kathy is conducting an experiment to test the impact of mindfulness training on adolescents' memory. She divides her research participants into two groups. One group is provided with mindfulness training, while the other group does not receive this training. She measures their performance on memory and attention tests at the beginning and at the end of the training. In this experiment, the group that did not receive the mindfulness training is called the

A) experimental group.
B) control group.
C) independent variable.
D) dependent variable.