In the following question, a sentence is given with certain words in bold. Choose the pair/s of such words which need to be interchanged so as to make the sentence grammatically correct and meaningful.

Access to the (A) awareness of the public (B) distribution system is equally important but is often (C) alongside by a faulty definition of who falls in the 'below poverty line' category, (D) constrained a limited (E) entitlements on where and how to (F) access ration cards and entitlements.