What Will Be The Output Of The Following Javascript Codep Pre #61

What will be the output of the following JavaScript code?</p> <pre><code class="language-javascript"> var grade='A'; var result=0; switch(grade) { case 'A': result+=10; case 'B': result+=9; case 'C': result+=8; default: result+=0; } document.write(result); </code></pre>

This multiple choice question (MCQ) is related to the book/course gs gs106 Javascript. It can also be found in gs gs106 Lexical Structures - JavaScript Statements - Quiz No.2.

 var grade='A'; var result=0; switch(grade) { case 'A': result+=10; case 'B': result+=9; case 'C': result+=8; default: result+=0; } document.write(result);