Challenges to and restoration of the congress system

Match the following:
(a) Syndicate i. An elected representative
leaving the party on whose
ticket s/he has been elected
(b) Defection ii. A catchy phrase that attracts
public attention
(c) Slogan iii. parties with different
ideological position coming
together to oppose Congress
and its policies
(d) Anti-Congressism iv. A group of powerful and
influential leaders within
the Congress