Choose the correct option with respect to the development in 1990's.
(A) Election of 1989 marked the end of the congress system
(B) Assassination of Rajiv Gandhi by LTTE in 1991
(C) In 1989, the UPA reformed were initiated by V.P. Singh
(D) In 1989, the UPA formed the Government
(E) Kapoori Thakur, the then chief minister of Bihar was pioneer in introducing the policy of reservation