Charlie's investigation of the relationship between length of commute to work and blood pressure revealed a significant causal effect of time spent commuting on elevated blood pressure. Which of the following could represent this finding?

A. t(45) = 4.21, p = .61, d = .19.B. t(45) =7.53, p = .04, d = .65.C. t(45) = 2.72, p = .10, d = .23.D. t(45) = 3.99, p = .08, d = .31.