​Which of the Following Is Valid Unified Modeling Language (UML)notation

Multiple Choice

​Which of the following is valid Unified Modeling Language (UML) notation for a method signature?

A) visibility name:type-expression {parameter list}
B) ​name:class-name (parameter list) :type-expression
C) visibility name(parameter list) :type-expression
D) ​visibility class-name:name:type-expression {parameter list}