Okay, let's tackle this question about the Millennium Development Goals and the Maternal Mortality Ratio (MMR) target for 2015. First, I need to recall what the MDGs were. The MDGs were a set of eight international development goals established following the Millennium Summit in 2000, with a target date of 2015. They covered various issues like poverty, education, gender equality, child mortality, maternal health, HIV/AIDS, environmental sustainability, and global partnerships.

The question specifically asks about the target to reduce MMR by 2015. I remember that MDG 5 was focused on improving maternal health. The target under MDG 5 was to reduce the maternal mortality ratio by three-quarters between 1990 and 2015. So the correct answer should be a 75% reduction. However, the options here are missing, but the user mentioned the correct answer is option C. Wait, but in the original question, the options are labeled A to D, but the correct answer's letter isn't provided. The user's input has the correct answer as ". " which might be a formatting error. Assuming the options are percentages like 50%, 75%, 90%, etc., the correct answer is 75% reduction.

Now, for the explanation. The core concept here is the Millennium Development Goals, specifically MDG 5. The key point is the 75% reduction target for MMR from 1990 levels by 2015. The correct answer is C if the options include 75%. The incorrect options would be other percentages, like 50% or 90%, which are not the actual targets. The clinical pearl here is to remember that MDG 5 aimed for a 75% reduction in MMR, which is a high-yield fact for exams. Also, it's important to note that after 2015, the Sustainable Development Goals (SDG) replaced MDGs, with SDG 3 aiming to reduce the global maternal mortality ratio to less than 70 per 100,000 live births by 2030.

Wait, but the user's correct answer is written as ". " which is incomplete. Maybe in the original question, the options were A) 50%, B) 60%, C) 75%, D) 90%, and the correct answer is C. I need to make sure that the explanation aligns with that. Also, the user's correct answer is labeled as [Letter]. [Answer Text], so I need to format that correctly. Since the options are missing, I have to infer based on the correct answer being 75% reduction. So the correct answer is C: 75%.

**Core Concept**
The Millennium Development Goals (MDGs) were eight international development goals established in 2000, targeting 2015. **MDG 5** aimed to improve maternal health by reducing the **maternal mortality ratio (MMR)** by **75% from 1990 levels**. This reflects global efforts to address preventable causes of maternal death, such as hemorrhage, infection, and lack of emergency obstetric care.

**Why the Correct Answer is Right**
The

✓ Correct Answer: B. 0.75