The statement that best summarizes the central idea of the text is -The actions of a large group can greatly influence an individual’s decisions.
Step-by-step explanation:
When a person/individual is in a group the decision making ability of the person is influenced by the people of the group or the group members.
The perspective of the members of the group has a great 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 the things is far different but once he becomes a part of the group he consider the perspective of the other individuals as well and thus the decision is influenced by the group members.