Which of the following are included in barrier method ?

Options

A. Condoms
B. Diaphragms
C. Cervical caps and vault
D. All of these

Answer

### Step-by-Step Solution:

1. **Understanding the Barrier Method**: The barrier method of contraception is designed to prevent sperm from reaching the ovum. It acts as a physical barrier to block fertilization.

2. **Identifying the Devices**: The question lists several devices:
- **Condoms**: These are worn by males or females to prevent sperm from entering the female reproductive tract.
- **Diaphragms**: These are dome-shaped devices inserted into the vagina to cover the cervix and block sperm.
- **Cervical Caps**: Similar to diaphragms, these are smaller and also cover the cervix to prevent sperm entry.
- **Vaults**: This term can refer to various types of barrier devices that also serve to block sperm.

3. **Evaluating the Options**: The question asks which of the listed devices are included in the barrier method. Since all the mentioned devices serve the purpose of blocking sperm and preventing fertilization, they all fall under the category of barrier methods.

4. **Conclusion**: Therefore, the correct answer is that all of the listed options (condoms, diaphragms, cervical caps, and vaults) are included in the barrier method of contraception.

### Final Answer:
**All of these** (condoms, diaphragms, cervical caps, and vaults) are included in the barrier method of birth control.

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