class Output { public static int sum(int ...x) { return; } static void main(String args[]) { sum(10); sum(10,20); sum(10,20,30); sum(10,20,30,40); } }

a) only sum(10)

b) only sum(10,20)

c) only sum(10) & sum(10,20)

d) all of the mentioned

class Output { public static int sum(int ...x) { return; } static void main(String args[]) { sum(10); sum(10,20); sum(10,20,30); sum(10,20,30,40); } }

a) only sum(10)

b) only sum(10,20)

c) only sum(10) & sum(10,20)

d) all of the mentioned

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d

Explanation: sum is a variable argument method and hence it can take any number as an argument.