Agricultural product subsidies usually refer to a country's government providing financial support to its agricultural product producers or operators, including cash subsidies, price support or other policy preferential policies, so that its agricultural products can obtain competitive advantages compared with similar products without subsidies in the international and domestic markets.
According to the above definition, which of the followings is an agricultural product subsidy?
Area A is mainly grassland, and the grassland is degraded due to overgrazing. According to the situation of this area, the national government gives herdsmen subsidies for 8-10 years and asks them to reduce their livestock, which leads to an increase in the price of beef and mutton in the market.