Option 1 -> (A), (B), (C), (D) - This arrangement starts with unit elasticity and doesn't follow ascending order.
Option 2 -> (A), (C), (B), (D) - This incorrectly places zero elasticity at the end instead of the beginning.
Option 3 -> (B), (A), (D), (C) - This starts with elastic demand and doesn't follow ascending order.
Option 4 -> (D), (C), (A), (B) - This correctly arranges elasticity from lowest to highest: perfectly inelastic (0), inelastic (<1), unit elastic (=1), and elastic (>1).
Hence, Option 4: (D), (C), (A), (B) -> The ascending order of elasticity values is: eD = 0 (perfectly inelastic) < eD < 1 (inelastic) < eD = 1 (unit elastic) < eD > 1 (elastic). This represents increasing responsiveness of quantity demanded to price changes, from no response at all (0) to highly responsive demand (>1). -> correct