## Core Concept
The curie (Ci) is a unit of measurement for radioactivity, specifically the quantity of any radioactive substance that undergoes 3.7 × 10^10 disintegrations per second. This unit helps in quantifying the activity of radioactive materials.

## Why the Correct Answer is Right
The correct answer, 3.7 × 10^10 disintegrations per second (dps) or becquerels (Bq), directly corresponds to the definition of one curie. Since 1 curie = 3.7 × 10^10 Bq, and the becquerel (Bq) is defined as one disintegration per second, this makes option **C. 3.7 × 10^10 Bq** the accurate equivalent.

## Why Each Wrong Option is Incorrect
- **Option A:** This option does not provide a correct conversion factor for 1 curie.
- **Option B:** Similarly, this option does not accurately represent the equivalent value for 1 curie.
- **Option D:** This option also does not match the definition or conversion factor for 1 curie.

## Clinical Pearl / High-Yield Fact
A key point to remember is that when dealing with radioactivity, 1 curie (Ci) equals 3.7 × 10^10 becquerels (Bq). This conversion is crucial in nuclear medicine and radiation safety.

## Correct Answer: C. 3.7 × 10^10 Bq.