When asked about likelihood to refer a friend, in a sample of 350 people, of respondents said they would refer in 2019, in 2020 a sample of 250 revealed that said they would refer. Are these two scores actually different at the level of confidence?

A. They are different. You should reject the null.

B. They are not different. You should fail to reject the null.

C. They are different. You should fail to reject the null.

D. They are not different. You should reject the null.