Match List - I (consumer behaviour approach) with List - II (Economist with whom it is associated) and select the correct answer using the codes given below :
List - IList - II
(a)Cardinal Approach (i)Von Newman Morgenstein
(b)Indifference curve (ii)Alfred Marshell
(c)Revealed Preference Approach (iii)J. K. Hicks
(d)Neo-utility theory of risky choices (iv)P. A. Samuelson