How may continuous use of capital letters in a mobile message be interpreted?

Correct answer: A sense of emphasis or shouting

The governing concept is that written and digital communication can convey tone through formatting. In many mobile messaging contexts, writing an entire message in capital letters is conventionally interpreted as strong emphasis or as if the sender is shouting. It does not remove the written record or merely decorate the text. Thus, option C is correct, although context can affect interpretation.