Which Option Represents a Legal Invocation of the Method Square()

question 19

Multiple Choice

Which option represents a legal invocation of the method square() ?
public static String square(int a) {
return ("Commencing") ;
}

• A) int a = square(4);
• B) String a = square("help");
• C) double a = square(4.0);
• D) String a = square(4);

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