[A]: In paracentric inversions the centromere is outside the inverted segment.
[R]: In pericentric inversion, the inverted seg- ment includes the centromere
A. If both A and R are true and R is the correct explanation of A
B. If both A and R are true but R is not the correct explanation of A
C. If A is true and R is false
D. If both A and R are false