Which thesis statement is the strongest?

Question

A. The most effective way to create jobs, in my opinion, is through government-supported programs aimed at renewing the nation’s infrastructure.


B. I think the most effective way to create jobs is through government-supported programs aimed at renewing the nation’s infrastructure.


C. The most effective way to create jobs is through government-supported programs aimed at renewing the nation’s infrastructure.


D. I strongly believe that the most effective way to create jobs is through government-supported programs aimed at renewing the nation’s infrastructure

Answer 1

Three of these choices have some form of "I think". Which one does not contain such a statement?