Choose the correct statement

Options

A. hPL plays a major role in parturition
B. Foetus shows movements first time in the 7th month of pregnancy
C. Signal for parturition comes from fully developed foetus and placenta
D. Embryo’s heart is formed by the 2nd month of pregnancy

Explanation

To solve the question "Choose the correct statement," we will analyze each statement provided and determine which one is accurate based on our knowledge of human reproduction.

### Step-by-Step Solution:

1. **Analyze the First Statement**:
- **Statement**: HPL plays a major role in parturition.
- **Evaluation**: This statement is incorrect. Human Placental Lactogen (HPL) does not play a major role in parturition; instead, oxytocin is the hormone that is primarily responsible for stimulating uterine contractions during labor.

**Hint**: Remember that oxytocin is crucial for initiating labor, while HPL is more involved in metabolic processes during pregnancy.

2. **Analyze the Second Statement**:
- **Statement**: The fetus shows movement for the first time in the seventh month of pregnancy.
- **Evaluation**: This statement is also incorrect. Fetal movements, often referred to as "quickening," are typically felt by the mother around the fourth to fifth month of pregnancy.

**Hint**: Consider the timeline of fetal development and when mothers usually report feeling movements.

3. **Analyze the Third Statement**:
- **Statement**: The signal for parturition comes from a fully developed fetus and placenta.
- **Evaluation**: This statement is correct. The process of parturition is initiated by signals from the fully developed fetus and the placenta, which release hormones that trigger labor.

**Hint**: Think about the role of the fetus and placenta in signaling the body that it is time for birth.

4. **Analyze the Fourth Statement**:
- **Statement**: The embryo's heart is formed by the second month of pregnancy.
- **Evaluation**: This statement is incorrect. The embryo's heart begins to form and starts beating in the first month of pregnancy, specifically around the 3rd to 4th week.

**Hint**: Recall the early stages of embryonic development and the timeline for heart formation.

### Conclusion:
After evaluating all the statements, the correct statement is: **"The signal for parturition comes from a fully developed fetus and placenta."**

### Final Answer:
The correct statement is: **The signal for parturition comes from a fully developed fetus and placenta.**