Of the following changes, which improves the organization of this passage? A)
Move sentence 3 before sentence 1.
B)
Move sentence 4 before sentence 2.
C)
Move sentence 6 before sentence 4.
D)
Move sentence 7 before sentence 5.

Arecent survey shows that the probability of a college student drinking alcohol is 0.6. further, given that the student is over 21 years old, the probability of drinking alcohol is 0.8. it is also known that 30% of the college students are over 21 years old. the probability of drinking or being over 21 years old is