The correct answer is: D. it may not throw anything.
The function void someFunction(int x) throw(char) is declared to throw a character. This means that it may throw a character, but it is not required to do so. If the function does not throw a character, then it will return normally.
Option A is incorrect because the function is declared to throw a character, so it is possible that it will throw a character.
Option B is incorrect because the function is declared to throw a character, so it is not possible that it will throw an integer.
Option C is incorrect because the function is declared to throw a character, so it is not possible that it will throw a character.
I hope this explanation is helpful. Please let me know if you have any other questions.