Suppose s is a string with the value "java". What will be assigned to x if you execute the following code?
```
char x = s.charAt(4);
```
a. 'a'
b. 'v'
c. Nothing will be assigned to x, because the execution causes the runtime error StringIndexOutofBoundsException.
c. Nothing will be assigned to x, because the execution causes the runtime error StringIndexOutofBoundsException.
The string index starts from 0 and the last index is s.length() - 1. s.charAt(4) is out of bounds.
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