Which among these contraceptive devices promotes cervix hostility?

Options

A. Saheli
B. Progestasert
C. Condoms
D. All of these

Explanation

To solve the question "Which among these contraceptive devices promotes cervix hostility?" we will analyze the options provided and understand the concept of cervix hostility.

### Step-by-Step Solution:

1. **Understand the Concept of Cervix Hostility**:
- Cervix hostility refers to the condition where the cervical mucus becomes thick and sticky, making it difficult for sperm to travel through the cervix. This can lead to infertility as it hinders sperm movement.

2. **Identify the Options**:
- The options given are:
- A) Saheli
- B) Progesterone
- C) Condoms
- D) All of these

3. **Evaluate Each Option**:
- **Saheli**: This is an oral contraceptive that does not typically cause significant hormonal imbalance or cervical hostility. It is designed to prevent ovulation without the side effects associated with hormonal contraceptives.
- **Progesterone**: This hormone is known to create an unfavorable environment in the uterus for implantation and can also lead to changes in cervical mucus, promoting cervix hostility.
- **Condoms**: These are barrier methods used primarily to prevent the transmission of sexually transmitted diseases and do not affect cervical mucus or promote cervix hostility.

4. **Determine the Correct Answer**:
- Among the options, **Progesterone** (Option B) is the one that promotes cervix hostility by altering the cervical mucus, making it less hospitable for sperm.

5. **Final Answer**:
- Therefore, the correct answer is **B) Progesterone**.