Which of the following features are common to Indian and Belgium form of power of sharing arrangements?

a) Power is shared among govt. at different levels.
b) Power is shared among different organs of govt.
c) Power is shared among different social groups.
d) Power is shared among different parties and takes the form of competition.

i) a, b, c, d
ii) b, c and d
iii) a and c
iv) a, c and d