The most suitable response to the question about how Oberon’s soliloquy enhances the audience’s experience of the play is:
The soliloquy gives the audience information that they would not have known otherwise, helping them understand and enjoy what happens next.
This response accurately reflects how the soliloquy provides crucial context regarding Oberon's intentions with the magical juice and his plan to manipulate Titania's affections, which sets the stage for the ensuing events in the play.