Respuesta :
If your thinking logically then you would want to tax the use of the common pasture. Doing that would limit the amount of sheep in the pasture itself. Because the number of sheep go down then the sheep still there will have an abundance of food. It can't be number 3 and I don't think its 1 so using my logic it would be 2. Hope this helped!
tax the pasture too keep too many sheep from getting on it