The bond angles marked a, b, and c in the molecule below are about __________, __________, and __________, respectively. Select correct answer. Select correct answer. 120°, 109.5°, 120° 90°, 90°, 90° 109.5°, 120, 109.5° 109.5°, 109.5°, 109.5° 109.5°, 109.5°, 90°