**Core Concept**
The National Malaria Eradication Programme (NMEP) in India introduced fever depot treatment as a strategy to control malaria, particularly in rural areas. This concept relies on the availability of antimalarial drugs at peripheral health facilities, known as fever depots, where they can be easily accessed by the population.

**Why the Correct Answer is Right**
The primary goal of the fever depot treatment is to ensure timely administration of antimalarial drugs to patients with suspected malaria, thereby reducing the risk of complications and mortality. This approach aims to bridge the gap between healthcare access and availability in rural areas, where patients often face significant barriers in seeking medical attention. By providing antimalarial drugs at the peripheral level, the fever depot treatment facilitates early diagnosis and treatment, ultimately reducing the malaria parasite reservoir in the community.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect as the fever depot treatment is not primarily focused on prophylaxis or chemoprevention of malaria.
**Option B:** This option is incorrect as the fever depot treatment is not solely dependent on passive surveillance or reporting of malaria cases.
**Option C:** This option is incorrect as the fever depot treatment is not limited to the use of sulfadoxine-pyrimethamine (SP) for malaria treatment.

**Clinical Pearl / High-Yield Fact**
It is essential to note that fever depot treatment is a critical component of malaria control strategies, particularly in areas with limited healthcare infrastructure. The timely administration of antimalarial drugs at the peripheral level can significantly reduce malaria-related morbidity and mortality.

**Correct Answer:** C.