The likely reason the river merchant departed when his wife was sixteen was:
C. He probably went on a trip relating to his business as a river merchant.
Explanation:
1. River merchants were traders who conducted business through river transportation.
2. The river merchant's departure at his wife's young age of sixteen suggests a business-related reason rather than personal issues.
3. Trade trips, especially in historical contexts, often required merchants to travel extensively for commerce.
4. Therefore, it is more reasonable to infer that the river merchant left for a business-related journey rather than due to personal conflicts or romantic affairs.
