what should be searched to find a JPEG file in hexadecimal format?

When searching through file headers for picture file formats, what should be searched to find a JPEG file in hexadecimal format?

A.
FF D8 FF E0 00 10

B.
FF FF FF FF FF FF

C.
FF 00 FF 00 FF 00

D.
EF 00 EF 00 EF 00