Answer:
B , E are correct.
Step-by-step explanation:
World Trade Organisation is an international organisation - that regulates, supervises, attempts to liberalise & world trade.
So, it is the world's most powerful institution for reducing trade barriers and opening markets.
It has 164 member countries. China and Russia are the members, which joined on 11 dec 2001 & 22 Aug 2012 respect.
'A' is false, as many countries joined after the preliminary Uruguay Round. Its an inter governmental organisation, is not controlled by any single government (like US)