Which set of contraceptives have similar mechanism of action?

Options

A. Cu - 7, Vaults
B. Cu -T, Multiload - 375
C. Cervical caps, Saheli
D. LNG-20, Condoms

Answer

To determine which set of contraceptives have a similar mechanism of action, we need to analyze each option provided in the question.

### Step-by-Step Solution:

1. **Understand the Mechanism of Action**:
- Contraceptives can work through various mechanisms such as hormonal regulation, barrier methods, or intrauterine devices (IUDs).

2. **Evaluate Each Option**:
- **Option 1: Copper 7 and Waltz**:
- Copper 7 is an intrauterine device (IUD) that prevents fertilization by creating a hostile environment for sperm.
- Waltz is a barrier contraceptive (like a diaphragm) that physically blocks sperm from entering the uterus.
- **Conclusion**: Different mechanisms; this option is incorrect.

- **Option 2: COPR-T and Multiload 375**:
- Both COPR-T and Multiload 375 are types of intrauterine devices (IUDs) that prevent fertilization by creating an unfavorable environment for sperm and preventing implantation.
- **Conclusion**: Similar mechanisms; this option is correct.

- **Option 3: Cervical Cap and Saheli**:
- The Cervical Cap is a barrier contraceptive that blocks sperm from entering the uterus.
- Saheli is an oral contraceptive that works hormonally to prevent ovulation.
- **Conclusion**: Different mechanisms; this option is incorrect.

- **Option 4: LNG 20 and Condoms**:
- LNG 20 is an intrauterine device (IUD) that prevents fertilization.
- Condoms are barrier contraceptives that physically block sperm.
- **Conclusion**: Different mechanisms; this option is incorrect.

3. **Final Conclusion**:
- The only option where both contraceptives share a similar mechanism of action is **Option 2: COPR-T and Multiload 375**.

### Answer:
The correct answer is **Option 2: COPR-T and Multiload 375**.