Q. What will be the output of the following JavaScript code?

<script>  
  
var article = {  
              "main title": "How to learn JavaScript",   
              'sub-title': "The Definitive Guide",   
              "for": "all audiences",   
              author: {   
firstname: "Scott",   
                         surname: "McCall"   
                      }  
           }  
</script> 

• (A) Properties
• (B) property names
• (C) property values
• (D) objects