Correct Option: A

The preamble makes it very clear when it says that We, the people of India, having solemnly resolved to constitute India into a SOVEREIGN SOCIALIST SECULAR DEMOCRATIC REPUBLIC and to secure to all its citizens.” The enacting words "We, the people of India... in our constituent assembly... do here by adopt, enact and give to ourselves this constitution", signifies the democratic principle that power ultimately rests in the hands of the people. It also emphasizes that the constitution is made by and for the Indian people and is not given to them by any outside power (such as the British Parliament).