Step 1: Understanding the right to information.
Article 19(1)(a) of the Indian Constitution guarantees the right to freedom of speech and expression. This right includes the right to information about public matters, including the antecedents of election candidates, as it is essential for making an informed choice in a democracy.
Step 2: Explanation of the options.
- (a) Article 19(1)(a): This is the correct answer, as it ensures freedom of speech and expression, which includes the right to know about candidates' backgrounds in elections.
- (b) Article 20: Deals with protection in respect of conviction for offenses, not related to election candidates' disclosure.
- (c) Article 13: Deals with laws inconsistent with or in derogation of the fundamental rights.
- (d) Article 14: Guarantees equality before the law, but not the right to information about candidates' antecedents.
Step 3: Conclusion.
Thus, the correct answer is (a) Article 19 (1)(a).