In an RPM matrix, each cell shows two overlapping circles. Row 1: both circles are white — the intersection is white. Row 2: one circle is shaded, the other is white — the intersection is shaded. Row 3: both circles are shaded — the intersection is white. What rule governs the intersection shading?
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A
XOR logic — the intersection is shaded only when exactly one shape is shaded
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B
AND logic — the intersection is shaded only when both shapes are shaded
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C
OR logic — the intersection is shaded whenever either shape is shaded
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D
NOT logic — the intersection is always opposite to both shapes