As per Economic Survey 2020-21, from the year ______ , infant mortality rates declined by 12% for states that did not adopt the ‘Ayushman Bharat Pradhan Mantri Jan Arogya Yojana’ (AB-PMJAY).

A

2016-17 to 2020-21

B

2019-20 to 2020-21

C

2018-19 to 2019-20

D

2015-16 to 2019-20