I thought that "whose" could be used as a relative pronoun both for things and for people. At least that is what I once read in Manhattan SC.
Now, I'm doing one CAT from Knewton
online course (got 770 :-S---> it seems not to be very representative of the real thing, since honestly I dont think that is my level) and in one question it says: Copy Paste of the solution: "choice C begins its relative clause with whose; suborders are not people, and the pronoun whose is reserved for people".
Could anybody elaborate on this.
Thanks in advance.
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