A. ISO 8879
B. ISO 7879
C. ISO 8869
D. None of these

Solution

A. ISO 8879

Explanation

he international standard for the Standard Generalized Markup Language (SGML) is defined by the International Organization for Standardization (ISO). The specific standard for SGML is ISO 8879. SGML is a metalanguage that provides a way to define markup languages for documents. It was first standardized in 1986, and ISO 8879 has undergone several revisions over the years to accommodate evolving needs in document markup and standardization.