A purse containing 32 ancient gold coins that had been minted in Morocco was discovered in the ruins of an ancient Jordanian city some 4, 000 kilometers to the east of Morocco. In its time the Jordanian city was an important trading center along the trade route linking China and Europe, and it was also a popular stopover for pilgrims on the route between Morocco and Mecca. The purse of a trader in the city would probably have contained a more diverse set of coins. The statements above, if true, most strongly support which one of the following hypotheses? ['Most gold coins available during the time when the ancient city thrived were minted in Morocco.', 'Pilgrims and traders in the ancient city were unlikely to have interacted with one another.', 'Moroccan coins were more valuable in the ancient city than were Jordanian coins.', 'The purse with the gold coins had been brought to the ancient city by a pilgrim on the route between Morocco and Mecca.']