**Core Concept**
The 'Health for All by 2000' initiative aimed to improve global health outcomes, including reducing the incidence of low birth weight. **Low birth weight** is a significant public health concern, as it is associated with increased morbidity and mortality in newborns. The initiative targeted various health indicators, including **maternal and child health**.

**Why the Correct Answer is Right**
The correct answer is related to the specific target set by the 'Health for All by 2000' initiative for reducing low birth weight incidence. This initiative recognized the importance of **prenatal care**, **nutrition**, and **health education** in preventing low birth weight. By setting a specific target, the initiative aimed to prompt countries to implement policies and programs to address the issue.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not align with the known targets of the 'Health for All by 2000' initiative.
**Option B:** This option is also incorrect, as it does not reflect the specific goal set for low birth weight reduction.
**Option D:** This option is incorrect, as the target was more specific than this option suggests.

**Clinical Pearl / High-Yield Fact**
The reduction of low birth weight is crucial for improving **infant mortality rates** and **long-term health outcomes**. Remember that **prenatal care** and **maternal nutrition** are key factors in preventing low birth weight.

**Correct Answer:** Correct Answer: C. 50% reduction