Reconciliatory Contact Between Opponents Immediately Following an Aggressive Encounter Can

Reconciliatory contact between opponents immediately following an aggressive encounter can reduce rates of self-scratching, an indicator of stress. If no reconciliation is attempted, then we can assume that

A) rates of self-scratching drop back to baseline, regardless of stress level.
B) rates of self-scratching remain above baseline, indicating high stress levels.
C) only one opponent experiences high stress levels.
D) the opponents will have high rates of aggression between them in the future.