Which of the expressions below can be factored using the difference of squares method?
A100x2 - 55y2
B100x2 + 49y2
C100x2 - 49y2
D100x2 + 55y2
A100x2 - 55y2
B100x2 + 49y2
C100x2 - 49y2
D100x2 + 55y2