Answer:
The statement that best summarizes the text's central idea is- A large group's actions can greatly influence an individual’s decisions.
Step-by-step explanation: When a person/individual is in a group the people of the group or the group members influence the decision-making ability of the person.
The perspective of the members of the group has a significant say in the decision-making skill of the individual member.
When an individual is alone or not a part of the group then his perspective of looking at things is far different but once he becomes a part of the group he considers the perspective of the other individuals as well and thus the decision is influenced by the group members!