To determine which of the options are audio-visual aids, let's understand what qualifies as an audio-visual aid. Audio-visual aids are tools that use both sound and visual components to convey information effectively. These tools are particularly effective in teaching and presentations.

Let's analyze each option:

1. Epidiascope: It is an optical device for projecting images of both opaque and transparent objects. It is primarily a visual aid, so it does not qualify as an audio-visual aid.
2. Radio: This is a device that broadcasts audio signals only, hence it is an audio aid, but not an audio-visual aid.
3. Drama: This involves live performers who use audio (speech, music) and visual (actions, costumes) elements, making it an audio-visual form of expression.
4. Puppets: These are used in storytelling with a combination of speech (audio) and movement (visual), thus making them an audio-visual aid.
5. Television: This medium uses both audio and visual elements to convey information, making it a classic example of an audio-visual aid.

From the above analysis, the audio-visual aids are:

• Drama
• Puppets
• Television

Hence, the correct answer is C, D and E only. Drama, Puppets, and Television are all examples of audio-visual aids that use both sound and visual elements to effectively communicate information.