The transgenic farm animals mentioned in this passage are ______.A．pigs, cows and mosquito

The transgenic farm animals mentioned in this passage are ______.

A．pigs, cows and mosquitoes that have gone through the transgenic procedure

B．pigs, cows, sheep and chickens that have accepted additional genes

C．leaner pigs, poultry that produce pharmaceuticals and healthier sheep

D．leaner pigs, chickens resisting diseases and goats that produce milk with medicine in it

此题为多项选择题。请帮忙给出正确答案和分析，谢谢！