Final answer:
Selenium RC supported many widely used programming languages. It's difficult to specify a particular language it didn't support, although it might not have supported less common languages.
Step-by-step explanation:
The question 'Which language is not supported by selenium rc?' pertains to Selenium, a widely used suite of tools for automating web browsers. Selenium Remote Control (RC) was one of the key components of the Selenium suite, which allowed for the writing of automated tests in various programming languages. However, it's important to note that Selenium RC has been officially deprecated in favor of Selenium WebDriver, which offers better support for modern web testing practices.
Regarding unsupported languages, since Selenium RC supported the most widely used programming languages such as Java, C#, PHP, Python, Ruby, and Perl, it is difficult to specify a particular language not supported without an exhaustive list of all programming languages. However, it can be said that lesser-known or less commonly used languages might not have had dedicated Selenium RC bindings or support.