The correct option is B A-II, B-III, C-IV, D-I
Addition of preservative is one of the steps of herbarium technique. The herbarium sheets are sprayed with fungicide to prevent the specimen from getting damaged.
Conservation of different animal species and also endangered species is the aim of zoological parks.
Stuffed animals are displayed in museums.
Greenhouses are used in botanical gardens to control environmental conditions such as temperature, humidity, light, etc. for specific plants.