Which instance of political expression would be considered speech plus

C. A student wearing all black to call attention to a political issue

Explanation:

The options for this question are:

A. A candidate speaking at a town hall meeting

B. A demonstrator chanting anti-corporate slogans outside a company's headquarters

C. A student wearing all black to call attention to a political issue

D. An author giving a lecture that criticizes the current president

The difference between speech and speech-plus is that speech is delivered using words, whereas speech-plus is delivered by communicative actions. So, a student wearing all black to call attention to a political issue can be considered as speech-plus form of political expression.