The correct answer is option 1: social equality.

Article 17 of the constitution provides for the abolition of untouchability, a social evil rooted in the caste system that discriminates against certain communities. This article ensures that all individuals, regardless of their caste, have equal social status and are treated with dignity and respect. It aims to eradicate the practice of untouchability and promote social equality in society.

Article 18 of the constitution prohibits titles and honours being granted by the State. This provision aims to eliminate social distinctions based on titles or positions, ensuring that all individuals are treated as equals and that social status is not determined by titles or honours bestowed upon them.

Both articles 17 and 18 contribute to the overall goal of social equality in the Indian constitution.