Maryland-based poultry (家禽) producer Perdue Foods, one of the largest food producers in America, announced that the company would keep in line with globally recognized guidelines known as the “Five Freedoms” of animal welfare standard. Perdue is the first major U.S. poultry producer to hold itself to so strict a standard—signal a welcome shift in American attitudes toward animal rights.To spare the farm from “discomfort,” “disease” and “distress,” as the “Five Freedoms” demand, Perdue will reduce the number of chickens in each barn and install windows to let in more natural light. The company will also put chickens to sleep before slaughter. Perhaps most important, Perdue has promised to reverse a troubling breeding trend: Many chickens are genetically engineered to grow fast in size until their organs fail or their legs break under their own weight. Eventually, Perdue will replace these kinds of chickens with new, more natural ones—though the company has yet to set a timeline for the transition.52. What is Perdue Foods' plan?A. It will improve the living condition of the barns.B. It will reduce the number of chickens they raise.C. It will install more windows in the company.D. It will kill chickens before they sleep.

Maryland-based poultry (家禽) producer Perdue Foods, one of the largest food producers in America, announced that the company would keep in line with globally recognized guidelines known as the “Five Freedoms” of animal welfare standard. Perdue is the first major U.S. poultry producer to hold itself to so strict a standard—signal a welcome shift in American attitudes toward animal rights. To spare the farm from “discomfort,” “disease” and “distress,” as the “Five Freedoms” demand, Perdue will reduce the number of chickens in each barn and install windows to let in more natural light. The company will also put chickens to sleep before slaughter. Perhaps most important, Perdue has promised to reverse a troubling breeding trend: Many chickens are genetically engineered to grow fast in size until their organs fail or their legs break under their own weight. Eventually, Perdue will replace these kinds of chickens with new, more natural ones—though the company has yet to set a timeline for the transition. 52. What is Perdue Foods' plan? A. It will improve the living condition of the barns. B. It will reduce the number of chickens they raise. C. It will install more windows in the company. D. It will kill chickens before they sleep.