Which of the Following Theoretical Statements Has the Narrowest Scope

Multiple Choice

Which of the following theoretical statements has the narrowest scope?

A) Professional baseball athletes in Japan who play first base and chew tobacco have more coordination and speed to tag runners out than those who do not chew tobacco.
B) People who experience unclear expectations will feel tension and stress.
C) College students who successfully complete a social research methods course develop critical reasoning skills that are superior to most other college students.
D) Canadian females under the age of 30 who exercise twice a week have a life expectancy 2-3 years longer than those who do not.