Allow the audience direct access to a character’s feelings.
Notice how the word soliloquy is a bit like the word 'solo'. This is basically what it is: a solo in drama, where somebody is projecting their inner thoughts. This gives the audience direct access to the character's feelings.
The correct answer is D. Allow the audience direct access to a character's feelings.
In literature, a soliloquy refers to a speech delivered by one character in which the character mainly speaks about himself or herself in relation to the situation she or he is living and the feelings and thoughts this situation causes. This is commonly used in literature, including drama, which refers to the performance of fictional stories, mainly to let the audience know the feelings and thoughts of the character and his or her position toward certain events, this means soliloquies mainly address the audience although they are presented as reflections of the character. Considering this, it can be concluded a soliloquy is used in drama to allow the audience direct access to a character's feelings.
A soliloquy is where the character is talking to himself, oblivious to others hearing.