State Assembly elections were held in Uttar Pradesh, India’s most populous state, in April 2007. Which of
the following statements are true in respect of the above event?

A : Congress Party and the Bharatiya Janatha Party dominated the election.
B : Bahujan Samaj Party emerged victorious.
C : Mayawati Kumari has been sworn in as Chief Minister of a single party government.
D : Mulayam Singh Yadav of the Samajawadi Party retained the Chief Minister ship.
E : Rahul Gandhi took a leading part in the election campaign on behalf of the Congress Party.