Explanation:

- Section 65-B: This section specifically deals with the admissibility of electronic records in a legal setting. It sets out the conditions under which an electronic record becomes admissible as evidence in court. This section is crucial in the digital age, where electronic documents are commonplace.

- Section 70: This section is not related to electronic records. It concerns the admission of secondary evidence of public documents when the original is not available.

- Section 78-B: This section does not exist within the Indian Evidence Act. It seems incorrect or might be a typographical error.

- Section 84-A: This section is also unrelated to electronic records. It is not a part of the Indian Evidence Act, rather could be a typographical error or from another law.

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