**Core Concept**
The intrauterine contraceptive device (IUCD) is a type of long-acting reversible contraceptive (LARC) that releases hormones or copper ions to prevent pregnancy. There are various types of IUCDs available, including hormonal and non-hormonal devices.

**Why the Correct Answer is Right**
The Multiload 375 is a type of non-hormonal IUCD that contains 375 mm² of copper surface area. It works by releasing copper ions, which have a toxic effect on sperm, thereby preventing fertilization. The copper ions also induce an inflammatory response in the endometrium, making it less receptive to implantation. The Multiload 375 is a popular IUCD due to its ease of insertion and high efficacy rate.

**Why Each Wrong Option is Incorrect**
**Option A:** CuT 200 is another type of non-hormonal IUCD, but it has a lower copper surface area (200 mm²) compared to the Multiload 375, making it less effective.
**Option C:** CuT 380A is a type of non-hormonal IUCD with a higher copper surface area (380 mm²), but it is not the same as the Multiload 375.
**Option D:** LNG-IUS stands for Levonorgestrel-releasing Intrauterine System, which is a type of hormonal IUCD that releases levonorgestrel to prevent pregnancy. It is not the same as the Multiload 375.

**Clinical Pearl / High-Yield Fact**
The Multiload 375 is a good option for women who want a long-acting reversible contraceptive method, but may not be suitable for women with a history of pelvic inflammatory disease or those who are allergic to copper.

**✓ Correct Answer: B. Multiload 375**