The statement says the legal rules of a state match the demands made on it, and those demands depend on how economic power is spread in the society the state controls. So the state's law-making (politics) and the distribution of economic power are tied together, each bearing on the other. It does not claim that one dominates the other, and it does not oppose them.
Why each option is right or wrong
(a) The statement connects the two rather than setting them against each other.
(b) Right: the state's legal rules and the spread of economic power in its society are tied together.
(c) Economics shapes the demands on the state, but the statement does not say it overrides politics.
(d) The statement gives no priority to politics.
Answer: UPSC’s key. Explanation: written by UPSC Grade, not by UPSC.