Final answer:
Mocha is a unit testing framework primarily used for JavaScript. It allows developers to write test cases for their JavaScript code.
The Correct option is; d. Javascript.
Step-by-step explanation:
Mocha is a unit testing framework primarily used for JavaScript. It is a popular testing framework that is widely used in the industry. Mocha allows developers to write test cases for their JavaScript code and ensure that it behaves as expected.
Mocha is a popular JavaScript testing framework. It is used for both Node.js and browser-based applications. Mocha provides a versatile and feature-rich environment for writing and running tests in JavaScript, making it widely used in the JavaScript development community.