I was looking through it and it looks like one sentence in each number is grammatically incorrect.
Answer: The correct answer is option "D". Efficient; price received by farmers maximizes their profit.
Explanation: Production quota of a good in economics is a regulations or restrictions mostly made by government or the market leaders to regulate the price of a particular good, to ensure that the producer is not in shortage nor making too much of surplus profit.
The price of a particular agricultural good can be set high to encourage farmers to produce at a given quantity in order to maximize their profit or when the government notices that the price the producer or farmer sells a particular good is too much for the people to bear they can also decide to regulate the price by lowering the price to a particular price level, in both cases the producer is never at loss.
