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) Most school children learn that the Earth has three layers: a crust, mantle and core,

(D)  that may change our understanding of how the planet was formed.

(B) Scientists have discovered massive mountains in the Earth’s mantle, an advance

(E)  that scientists have identified within the Earth.

(C) While the texts aren't necessarily wrong, they do leave out several other layers

(F)  which is subdivided into an inner and outer core.

Question

Column (1)	Column (2)
(A) Most school children learn that the Earth has three layers: a crust, mantle and core,	(D) that may change our understanding of how the planet was formed.
(B) Scientists have discovered massive mountains in the Earth’s mantle, an advance	(E) that scientists have identified within the Earth.
(C) While the texts aren't necessarily wrong, they do leave out several other layers	(F) which is subdivided into an inner and outer core.