The correct option is D Herbarium
Herbarium acts as quick referral system in taxonomic studies. It is collection of preserved plant specimens and related data use for study.
Botanical gardens is the place of collection of living plants which are maintained for studies. Museums have a collection of preserved plants and animal specimens for study and reference. They preserve specimens in the container or jar in a preservative solution.
Zoological parks or zoo are the places where wild animals are kept in protected environments under human care and which enable us to learn about their food habits and behaviour.
So, the correct answer is (C).