Which of the following is most likely the next step in the series?

All the circles are divided in fours.

Circle 1 has one shaded blue part in the top left corner with a number 1 in it.

Circle 2 has the same shaded space and number but also on the right it shaded red with the number 2 in it.

Circle 3 has both as one and two but the bottom right is shaded blue with the number 3 in it.

The subject is geometry
Pls help
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