Established in 1971, the recent session of World Economic Forum (WEF) was held on?

Established in 1971, the recent session of World Economic Forum (WEF) was held on?

A. 22–26 January, 2018
B. 23–26 January, 2018
C. 24–26 January, 2018
D. 25–26 January, 2018