The term 'PROTEST OPTION' can be solved by the crossword solution 'MARCH', which is a five-letter word. Marching is a form of protest that has been used for centuries to express dissent and to bring attention to a cause. It is often used in conjunction with other forms of protest, such as rallies, sit-ins, and strikes. Marching is a powerful way to make a statement and to show solidarity with a cause.