Step 1: Recall UPI ownership.
UPI is a digital payment system developed, promoted, and managed by the National Payments Corporation of India (NPCI)
Match List-I (Management Theories/Principles) with List-II (Management Thinkers): 
Arrange the following needs in the order in which they appear in the Maslow's Hierarchy of Needs, starting from bottom to top.
(A) Social
(B) Physiological
(C) Esteem
(D) Safety