If a cyclic quadrilateral $ABCD$ has $\angle A = 85^\circ$ and $\angle B = 75^\circ$, find $\angle C$ and $\angle D$ respectively.
Options:
- A: 95° and 105°
- B: 105° and 95°
- C: 90° and 90°
- D: 85° and 75°
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