a) The herbarium is a tool to study taxonomy. It is a place where dried and pressed plant parts are preserved on a sheet. It gives information of common and botanical name, taxonomy etc.
b) Key is the taxonomical aid that helps in identification of various taxa on the basis of similarity and dissimilarities.
c) A museum is a place where both animals and plants are preserved for future study.
d) A catalogue is the list of all species that found in an area with a brief description. It is used for identification of species. Thus, the correct answer is option C.