(Choose 1 answer)
What would the browser display if the following script was executed and the user entered 5 at both prompts?
1 <SCRIPT LANGUAGE = "JavaScript">
2 var firstNumber = window.prompt("Enter an integer", 0);
3 var second Number = window.prompt("Enter an integer", 0);
4 var thirdNumber;
5 thirdNumber = firstNumber + secondNumber;
6 document.write(thirdNumber);
7 </SCRIPT>
A. nothing
B. 0
C. 10
D. 55
