Certainly! Here is a clear and concise answer to your question:
A speech in which a character, alone on stage, verbalizes his/her internal thoughts and only the audience hears is called a soliloquy. In a soliloquy, the character expresses their innermost feelings, emotions, and thoughts directly to the audience, providing insight into their motives, conflicts, and dilemmas.
Here's a breakdown of the options given:
1. Dialogue: A conversation between two or more characters.
2. Soliloquy: A speech delivered by a character alone on stage to reveal their inner thoughts.
3. Aside: A brief remark made by a character to the audience or another character, unheard by others on stage.
4. Monologue: A long speech delivered by one character, usually addressing other characters present.
Therefore, in the context of the question, the correct answer is B. soliloquy.