Select the correct statement regarding Cyathium inflorescence
I) Single fruit develops from it
II) Presence of achlamydeous and unisexual flowers
III) Many stamens are present in a single male flower

Options

A. I and II only
B. II and III only
C. I and III only
D. I, II and III

Answer

To determine the correct statements regarding Cyathium inflorescence, let's analyze each statement step by step.

### Step 1: Analyze Statement I
**Statement I: Single fruit develops from it.**
- In Cyathium inflorescence, it is known that a single fruit develops from the inflorescence. This is a characteristic feature of the Cyathium type, particularly in the Euphorbia family. Therefore, this statement is **correct**.

### Step 2: Analyze Statement II
**Statement II: Presence of achlamydeous and unisexual flowers.**
- Achlamydeous flowers are those that do not have petals or sepals. In Cyathium inflorescence, both achlamydeous (lacking perianth) and unisexual flowers (either male or female) are present. Thus, this statement is also **correct**.

### Step 3: Analyze Statement III
**Statement III: Many stamens are present in a single male flower.**
- In Cyathium inflorescence, the male flowers typically have a reduced structure, and many of them are sterile. The stamens are not numerous in a single male flower; instead, they are often represented by bracts. Therefore, this statement is **incorrect**.

### Conclusion
Based on the analysis:
- Statement I is correct.
- Statement II is correct.
- Statement III is incorrect.

Thus, the correct statements regarding Cyathium inflorescence are **I and II only**.

### Final Answer
The correct answer is: **I and II only**.

---