Is this statement a hypothesis? The purpose of this research is to study introverts and extroverts ...

Is this statement a hypothesis? The purpose of this research is to study introverts and extroverts by examining their social behaviors and home life.
 
  a. Yes, because it states the main purpose of the study.
  b. Yes, because it will lead to the testing of the significance between groups.
  c. No, because it doesn't state a relationship to be tested.
  d. No, because the statement isn't presented in the form of a question.

Ques. 2

Which of the following would be the most suitable hypothesis for study?
 
  a. The Columbus school district has too many janitors.
  b. For learning-disabled students, attending a regular classroom is better than attending a segregated classroom.
  c. Solutions to math problems should be taught with computers as well as with paper-and-pencil computation.
  d. Nonsense words are forgotten more quickly than meaningful words.
  e. Teachers who have had a counseling course will be better teachers than those who have not had a counseling course.