A dial plan uses six-digit numbers, in which the first two digits are a site code and the last four digits are an extension. Access codes must begin with a 7 or 8 and the second digit must be a 0, 1, 5, or 9. Calls within a site are placed using just the four digit extensions. Which two route patterns will support this dial-plan requirement? (Choose two.)
A.
[78][0159].XXXX
B.
[7-8][^0159].XXXX
C.
[^0-6,9][2-4,6-8].XXXX
D.
[^0-69][^2-4678].XXXX
E.
[^78][^234678].XXXX
F.
[7-8][234678].XXXX