What effect did grazing tax have on pastoralists?

Correct answer: Their economic burden increased

A grazing tax is a payment demanded for using pasture or forest areas for animals. When pastoralists had to pay this tax, money or part of their earnings had to be set aside before they could meet other household and animal-care needs. The tax therefore increased the cost of maintaining livestock and placed pressure on their livelihood. If income was uncertain because of weather, disease, or limited access to pasture, the burden could become even more serious.

The other choices do not describe the normal effect of a tax. It did not provide free fodder, remove every difficulty, or turn pastoralists into forest officers. The key economic relationship is simple: an added compulsory payment reduces the amount available for family use, trade, and animal care. Thus option A is correct because grazing tax increased the economic burden on pastoralists.