Economic activities: Sahukars often operated in rural areas where both moneylending and trade were essential economic activities. 

Diversification: By engaging in trade along with moneylending, Sahukars could diversify their sources of income. They would invest in various businesses, including buying and selling agricultural produce, textiles, and other commodities.

Risk Management: Trading activities allowed Sahukars to spread their risks. They could make profits from trading when moneylending alone might not yield significant returns. This helped them manage the uncertainties associated with moneylending.

Interlinked Markets: Moneylending and trading were often closely related. Sahukars would provide loans to farmers and traders, especially during crop seasons, and then purchase the agricultural produce for trade.

Local Economic Influence: Sahukars played a significant role in rural economies, holding considerable influence in both financial matters and local trade networks.

Profits and Interest: Sahukars charged interest on loans they provided, and the profits earned from trading contributed to their wealth and income.

So,the correct option is [3].