Directions: 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) A master control station and backup control station	(D) monitored and adjusted from these stations.
(B)The accuracy of a satellite’s orbit is	(E) connect it to the master control station.
(C) These secondary stations are used to feed data about performance and	(F) monitor the condition of the satellites in orbit.