Which among following is a mechanical barrier used in birth control?

Options

A. Saheli
B. Copper T
C. loop
D. Diaphragm

Answer

**Step-by-Step Solution:**

1. **Understand the Question**: The question asks for a mechanical barrier used in birth control. Mechanical barriers are physical devices that prevent sperm from reaching the egg.

2. **Evaluate the Options**:
- **Option A: Saheli** - This is an oral contraceptive pill. Since it is taken orally and works chemically to prevent pregnancy, it is not a mechanical barrier.
- **Option B: Copper Tea** - This is an intrauterine device (IUD) that releases copper. While it is a form of birth control, it functions chemically by releasing copper to alter the uterine environment, so it is not a mechanical barrier.
- **Option C: Lube** - While lube may be used in conjunction with other methods, it is not a mechanical barrier itself. It does not block sperm from entering the cervix.
- **Option D: Diaphragm** - This is a mechanical barrier. It is a dome-shaped device made of rubber that is inserted into the vagina to cover the cervix, preventing sperm from entering the uterus.

3. **Conclusion**: The correct answer is **Diaphragm** (Option D), as it is the only option that serves as a mechanical barrier in birth control.