Match the items of List I with the items of List-II and choose the correct answer:

List-I	List-II
a. The economy was characterised by small regional suppliers who sold goods on a local basis	1. Mass marketing
b. Standardised, branded goods were sold at national level	2. Hyper segmentation
c. Era of market differentiation based on demographic, socio-economic and life style factors	3. Segmentation
d. Technological advancements, especially in the area of digital communication allow marketers to communicate with individual consumers or very small groups	4. Fragmentation