Which of the following is a contraceptive device which prevents pregnancy by preventing fertilization and an IUCD for birth control?

Options

A. Copper-T
B. A combined pill
C. Foam tablet
D. Abortant pill

Answer

To solve the question regarding which contraceptive device prevents pregnancy by preventing fertilization and is classified as an IUCD (Intrauterine Contraceptive Device), we can follow these steps:

### Step 1: Understand the Question
The question asks for a contraceptive device that prevents pregnancy by preventing fertilization and is specifically an IUCD.

### Step 2: Define IUCD
An IUCD is a device that is inserted into the uterus to prevent pregnancy. It can work through various mechanisms, including preventing fertilization or implantation.

### Step 3: Identify Types of IUCDs
There are three main types of IUCDs:
1. **Copper-releasing IUCDs**: These release copper ions which create an environment that is toxic to sperm and prevents fertilization.
2. **Hormone-releasing IUCDs**: These release hormones that can thicken cervical mucus and inhibit ovulation.
3. **Non-medicated IUCDs**: These do not release any medication and primarily work by creating a physical barrier.

### Step 4: Review Examples of IUCDs
- **Copper-releasing IUCDs**: Examples include Copper-T, Copper-7, and Multiload 375.
- **Hormone-releasing IUCDs**: Examples include Progestasert and Levonorgestrel (LHG).
- **Non-medicated IUCDs**: An example is the Lipis loop.

### Step 5: Determine Which IUCD Prevents Fertilization
Among the examples, the **Copper-T** is known to release copper ions that prevent fertilization by making the uterine environment unsuitable for sperm.

### Step 6: Conclusion
Based on the information, the correct answer to the question is **Copper-T**, as it is a contraceptive device that prevents pregnancy by preventing fertilization and is classified as an IUCD.

### Final Answer
**Copper-T** is the contraceptive device that prevents pregnancy by preventing fertilization and is an IUCD for birth control.

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