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 makes a correct sentence, mark ‘None of these’ as your answer.

Column (1)	Column (2)
(A) Evidence for genetic determinants affecting the smoking phenotype has steadily accumulated both from	(D) than that of nicotine, it is useful as a biomarker in smoking surveys and smoking cessation trials
(B) Since cotinine has a half-life an order of magnitude greater	(E) loci affecting nicotine dependence and ever smoking may be found with further work.
(C) Plasma and urinary nicotine and cotinine concentrations have repeatedly been found to be associated	(F) with the number of cigarettes smoked per day