Section 24 IEA renders inadmissible a confession caused by:

1. Section 24 IEA: 'A confession made by an accused person is irrelevant in a criminal proceeding, if the making of the confession appears to the court to have been caused by any inducement, threat, or promise, having reference to the charge against the accused person, proceeding from a person in authority and sufficient, in the opinion of the court, to give the accused person grounds, which would appear to him reasonable, for supposing that by making it he would gain any advantage or avoid any evil of a temporal nature in reference to the proceedings against him.' 2. Four cumulative conditions: (i) inducement, threat or promise; (ii) reference to the charge; (iii) by a person in authority; (iv) reasonable ground to suppose advantage gained or evil avoided. 3. The exclusionary rule rests on unreliability and protection against compelled testimony (cf. Article 20(3)). 4. Hence option A is the verbatim text and the only one capturing all four conditions. _Source: Indian Penal Code 1860 / Code of Criminal Procedure 1973 / Indian Evidence Act 1872 (Bare Acts, indiacode.nic.in) — Indian Evidence Act, Section 24_