What are the key features in the C programming language?

<p><strong>Features are as follows:</strong></p> <ul> <li><strong>Portability</strong>: It is a platform-independent language.</li> <li><strong>Modularity:</strong>&nbsp;Possibility to break down large programs into small modules.</li> <li><strong>Flexibility:</strong>&nbsp;The possibility of a programmer to control the language.</li> <li><strong>Speed:</strong>&nbsp;C comes with support for system programming and hence it compiles and executes with high speed when compared with other high-level languages.</li> <li><strong>Extensibility</strong>: Possibility to add new features by the programmer.</li> </ul>