Ecological age groups of a population are
`{:(I,"pre-reproductive",II,"reproductive"),(III,"post-reproductive",IV,"old-age group"),(V,"adolescent age group",VI,"infertile age group"):}`
Choose the correct option for given statements

Options

A. I,II and III
B. III,IV and V
C. IV,V and VI
D. I, V and VI

Answer

To solve the question regarding the ecological age groups of a population, we will follow these steps:

### Step 1: Identify the Ecological Age Groups
The ecological age groups of a population are typically categorized into three main groups:
1. **Pre-reproductive**: Individuals who are not yet capable of reproduction.
2. **Reproductive**: Individuals who are capable of reproduction.
3. **Post-reproductive**: Individuals who are no longer capable of reproduction.

### Step 2: Analyze the Given Options
The question presents six statements regarding age groups. We need to determine which of these correspond to the identified ecological age groups.

### Step 3: Match the Statements with Ecological Age Groups
From the identified groups:
- **Pre-reproductive** corresponds to the first group.
- **Reproductive** corresponds to the second group.
- **Post-reproductive** corresponds to the third group.

### Step 4: Eliminate Non-Ecological Age Groups
The other age groups mentioned in the options, such as "old-age group," "adolescent age group," and "infertile age group," do not fit into the standard ecological age categories used in population studies.

### Step 5: Choose the Correct Option
Based on the analysis, the correct option that aligns with the ecological age groups of a population is:
- **I (pre-reproductive), II (reproductive), III (post-reproductive)**.

### Final Answer
The correct option for the ecological age groups of a population is **I, II, III**.

---