Reed Larson Pioneered a Research Technique in Which People Carried

Reed Larson pioneered a research technique in which people carried wristwatch beepers. When the beepers went off at various random times during the day, the participant had to record his or her thoughts, feelings and behaviours that were occurring at the time. What was the name of this research technique?

A) Random Thought Method
B) Experience Sampling Method
C) Wrist-Beeper Plan
D) Random Recording Technique