The correct options are
A Its composition reflects Indian federalism.
C It keeps a check on hasty legislation.
D It lessens the burden of the Lok Sabha.
The Rajya Sabha’s composition reflects Indian federalism. It allows for greater representation, not just from the states but also from experts in different areas. It keeps a check on hasty legislation by allowing a second look at all Bills before they become laws. It lessens the burden of the Lok Sabha.