**Core Concept**
Fluoride therapy is a crucial component in the management of rampant caries, a condition characterized by the rapid progression of dental caries, often leading to extensive tooth destruction. This condition is typically seen in individuals with poor oral hygiene, high sugar intake, and inadequate fluoride exposure.

**Why the Correct Answer is Right**
Fluoride therapy works by promoting the remineralization of tooth enamel, making teeth more resistant to acid attacks from plaque bacteria. It also inhibits the growth of bacteria that produce acid, thereby reducing the risk of further caries progression. Fluoride can be applied topically in the form of varnishes, gels, or solutions, or ingested in the form of fluoride supplements or fluoridated water.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because antibiotics are not a primary treatment for rampant caries, although they may be used to manage any associated infections.
**Option B:** This option is incorrect because dental extractions may be necessary for teeth that are severely damaged beyond repair, but they do not address the underlying cause of rampant caries.
**Option C:** This option is incorrect because while good oral hygiene practices are essential for preventing caries, they do not provide a direct treatment for rampant caries.

**Clinical Pearl / High-Yield Fact**
The use of fluoride varnishes has been shown to be highly effective in preventing caries progression and reducing the need for dental fillings in high-risk patients.

**Correct Answer:** A. Fluoride therapy is the primary treatment for rampant caries.