In the following question, two columns are given, containing three phrases each. A phrase from the first column may or may not connect with a phrase from the second column to make a grammatically and contextually correct sentence. There are five options, four of which display the sequence(s) in which the phrases can be joined to form a correct sentence. If none of the phrases make a correct sentence, mark ‘None of these’ as your answer.

Column (1)	Column (2)
(A) Higher animals are composed	(D) ammonia, a by-product of the digestion process.
(B) Many invertebrate animals completely	(E) of trillions of differentiated cells.
(C) All land-dwelling vertebrates produce	(F) lack any kind of endoskeleton or exoskeleton.