Two Studies Were Conducted on Different Samples from the Same

Two studies were conducted on different samples from the same population to assess the relationship between oral contraceptive use and the risk of deep venous thrombosis (DVT) .  Study A showed an increased risk of DVT among oral contraceptive users, with a relative risk of 2.0 and a 95% confidence interval of 1.2-2.8.  Study B showed a relative risk of 2.01 and a 95% confidence interval of 0.8-3.1.  Which of the following statements is most likely to be true regarding these 2 studies?

A) The p-value in study B is likely <0.05
B) The result in study A is not accurate
C) The result in study A is not statistically significant
D) The result in study B is likely biased
E) The sample size is likely smaller in study B than study A

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