Once again consider the following cipher text:

b pvc pubor pwc pva b pvc ptvcfa pbpssn pxfvnq fvh pvc pbtx pxfvnq

What can you surmise about the two occurrences of the letter "b" that appear to be a single letter word?

A. Since this appears to be a transposition cipher the fact that the "b" appears by itself has no special meaning.

B. Since this appears to be a transposition cipher the fact that the "b" appears by itself means its corresponding plain text character is almost certain to be an "I" or an "A" (dont worry if the "A" is upper or lower case).

C. Since this appears to be a substitution cipher the fact that the "b" appears by itself has no special meaning.

D. Since this appears to be a substitution cipher the fact that the "b" appears by itself means its corresponding plain text character is almost certain to be an "I" or an "A" (dont worry if the "A" is upper or lower case).

E, There is not enough information to determine what type of cipher was used to encrypt the text.