What is the most common language to use for automation tests?

Question

There are many languages that people use for automation as programing or scripting lang. what is the most common and recomended? why?

Answer 1

Ruby
JavaScript
Python
C#
more details
https://www.joecolantonio.com/2015/05/31/selenium-what-programming-language-you-should-learn-to-get-into-test-automation/