He wanted absolute control of the firm.

Answer: Option D

Absolute : not qualified or diminished in any way; total.
Little : small in size, amount, or degree (often used to convey an appealing diminutiveness or express an affectionate or condescending attitude).
Few : a small number of.
Complex : consisting of many different and connected parts.
Limited : restricted in size, amount, or extent; few, small, or short.

Antonym of Absolute is Limited