**Core Concept**
Deciduous teeth with poor prognosis, alveolar abscess, and necrotic pulp require a treatment approach that balances the need for pain relief, infection control, and preservation of the alveolar bone for potential future orthodontic or prosthetic needs. The American Academy of Pediatric Dentistry recommends extraction as the treatment of choice for deciduous teeth with poor prognosis, especially when accompanied by alveolar abscess and necrotic pulp.

**Why the Correct Answer is Right**
Extraction of the deciduous tooth is preferred in this scenario because it allows for immediate relief from pain and infection, while also preventing the spread of infection to adjacent teeth or surrounding tissues. Additionally, extraction avoids the potential complications associated with attempting to save a tooth that has poor prognosis, such as root canal treatment failure, chronic infection, or the need for more extensive surgical interventions. The extraction process also enables the dentist to inspect the alveolar bone and surrounding tissues, which can help in planning for any necessary future treatments.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is not specified, so we can't evaluate its correctness. However, if it were a specific treatment, it would need to be evaluated based on its appropriateness for the given scenario.

**Option B:** This option is not specified, so we can't evaluate its correctness. However, if it were a specific treatment, it would need to be evaluated based on its appropriateness for the given scenario.

**Option C:** This option is not specified, so we can't evaluate its correctness. However, if it were a specific treatment, it would need to be evaluated based on its appropriateness for the given scenario.

**Clinical Pearl / High-Yield Fact**
When treating deciduous teeth with poor prognosis, it's essential to consider the potential impact on adjacent teeth and surrounding tissues. A thorough evaluation of the alveolar bone and surrounding tissues is crucial to determine the best treatment approach and to plan for any necessary future treatments.

**Correct Answer: C. Extraction**