Match the following.

List-I (Era's of Marketing)	List-II (Features)
a. Production era	1. Marketers focused their efforts only on selling their products to the customers
b. Sales era	2. It calls upon the marketers to build social, ethical and environmental considerations into marketing process
c. Marketing era	3. Companies focused on mere manufacturing processes
d. Societal marketing era	4. It focused on setting their products