What problem increased on the remaining pastures due to colonial policies?

Correct answer: Pressure of overgrazing

The direct answer is C: pressure of overgrazing. Colonial policies often reduced available pastures by reserving land, expanding cultivation or restricting movement. When the number of animals remained large but the grazing area became smaller, many animals had to feed in the same limited places. The chain is: less pasture, more animals per remaining area, heavier grazing, and pressure on grass and soil. Option A, grazing completely stopping, is too absolute; grazing often continued, but under greater pressure and restrictions. Option B, increased sea trade, has no direct connection with the condition of pastures. Option C is correct because limited pasture was used more intensely, causing overgrazing pressure. Option D, increased cloth production, does not describe the ecological or pastoral problem asked here. Remember: fewer grazing lands plus continuing herds means overgrazing pressure.