Which of the following pairs of numbers is matched with its correct greatest common factor? Select two that apply.
A
The greatest common factor of 10 and 68 is 2.

B
The greatest common factor of 33 and 99 is 3.

C
The greatest common factor of 78 and 84 is 6.

D
The greatest common factor of 45 and 54 is 5.



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