In the following question, two columns are given containing three phrases each, In the first column, the phrases are A, B, and C, and in the second column, the phrases are D, E, and F. 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 grammatically and contextually correct sentence. If none of the options given forms a correct sentence after combination, select 'None of these' as your answer.

Column (A)	Column (B)
(A) Genetic and environmental factors work in tandem,	(D) can have profound consequences for the unborn child.
(B) No other issue involving the relative influence of heredity and environment	(E) each affecting and being affected by the other.
(C) Mothers’ use of alcohol	(F) has generated more research than the topic of intelligence.