The Restriction Enzyme AcyI Cuts Duplex DNA at the Sequence

Multiple Choice

The restriction enzyme AcyI cuts duplex DNA at the sequence 5' GPuCGPyC 3'
3' CPyGCPuG 5'
Where Pu = either purine and Py = either pyrimidine.On average, what is the length of DNA fragments in base pairs created by this enzyme? (Assume that the four bases are found in equal frequencies in this DNA sample.)

A) 48
B) 512
C) 4096
D) 256
E) 1024