Read the statements given below :
(i) The first movements of the foetus are usually observed during 7th months of pregnancy.
(ii) Umbilical cord possess 100 percent foetal blood.
(iii) At puberty , in female each ovary contain about 60,000 - 80,000 primary follicles.
Choose the correct Statement from the above

Options

A. i, ii and iii
B. i and ii
C. iii only
D. i only

Answer

To solve the question, we need to evaluate each of the three statements provided and determine which one is correct.

### Step-by-Step Solution:

1. **Evaluate Statement (i)**: "The first movements of the foetus are usually observed during the 7th month of pregnancy."
- The first movements of the fetus, known as "quickening," typically occur around the 20th week of pregnancy, which is approximately the 5th month, not the 7th month. Therefore, this statement is **false**.

2. **Evaluate Statement (ii)**: "Umbilical cord possesses 100 percent foetal blood."
- The umbilical cord contains two arteries and one vein. The blood in the umbilical cord is not 100% fetal blood; it includes maternal blood as well. The vein carries oxygenated blood and nutrients from the placenta to the fetus, while the arteries carry deoxygenated blood from the fetus back to the placenta. Thus, this statement is also **false**.

3. **Evaluate Statement (iii)**: "At puberty, in females, each ovary contains about 60,000 - 80,000 primary follicles."
- This statement is accurate. At puberty, females typically have around 60,000 to 80,000 primary follicles in each ovary. This number decreases over time as some follicles undergo atresia. Therefore, this statement is **true**.

### Conclusion:
The only correct statement among the three is statement (iii).

### Final Answer:
**Statement (iii) is correct.**

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