Answer:
Schachter-Singer theory
Explanation:
Its also known as Two -factor theory in which Schachter-Singer consider that there is two main parts one is physical arousal and other one is cognitive labeling. Like when we feel physical arousal like increases heart beat, trembling, sweating than we label that emotions based on environmental cues.
During this time humans used stone to make tools and stone was used many times as part of the actual tool. Tools are objects that make our lives easier. A computer or smart phone are examples of modern-day tools. Paleolithic is a word that comes from the two Greek words palaios, meaning old, and lithos, meaning stone.