Final answer:
The vocal fold posture associated with throat clearing and coughing is hyperadduction.
Step-by-step explanation:
Hyperadduction refers to the excessive closure or squeezing of the vocal folds during phonation or other vocal activities. Throat clearing and coughing require a forceful expulsion of air from the lungs, which is facilitated by the hyperadducted vocal folds.
In contrast, hyperabduction refers to the excessive opening or widening of the vocal folds, while semi-adduction refers to a partially closed position. None of these postures are directly associated with throat clearing and coughing.