**Core Concept**
The Intrauterine Contraceptive Device (IUCD) is a form of birth control that is inserted into the uterus. IUCDs are classified into different generations based on their composition and mechanism of action, including the presence of copper, hormones, or other materials.

**Why the Correct Answer is Right**
Multi-Load 375 is a type of IUCD that contains copper, which acts as a spermicide within the uterus, thereby preventing fertilization. This characteristic places it among the earlier generations of IUCDs, specifically those that rely on the release of ions to exert their contraceptive effect. The "375" in its name refers to the surface area of the copper.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because the first generation of IUCDs were typically made of inert materials like plastic and did not contain copper or hormones.
**Option B:** This option might seem plausible but is incorrect because the specific details of Multi-Load 375 align more closely with the characteristics of second-generation IUCDs.
**Option D:** This option is incorrect because it represents a later generation of IUCDs that typically contain hormones, not copper.

**Clinical Pearl / High-Yield Fact**
It's crucial to remember that copper IUCDs like the Multi-Load 375 are effective for up to 10 years and offer a non-hormonal option for contraception. They can also be used for emergency contraception if inserted within a certain timeframe after unprotected sex.

**Correct Answer:** D is not the correct option based on the explanation provided; however, the explanation points towards **Correct Answer: B. Second generation**.