Which of the following statements is/are correct?
(i) Category belongs to one particular rank.
(ii) Botanical gardens have collection of living plants and animals for reference.
(iii) Famous botanical garden of Kew is located in France.
(iv) Monographs contain information on one taxon.
(a) (i) and (ii)
(b) (i) and (iv)
(c) (ii) and (iii)
(d) (iii) and (iv)