Kangaroos are marsupial because

Options

A. They produced helpless infants
B. The females have a marsupial pouch
C. They are found in Australia
D. They show uterine gestation

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks why kangaroos are classified as marsupials. To answer this, we need to identify the defining characteristics of marsupials.

2. **Evaluating the Options**:
- **Option A**: "They produce helpless infants."
- This statement is partially true, as marsupials do give birth to relatively undeveloped young. However, this characteristic alone does not define them as marsupials.
- **Option B**: "The females have a marsupial pouch."
- This is a defining characteristic of marsupials. Female kangaroos have a pouch in which they carry and nurse their young after birth. This is the correct answer.
- **Option C**: "They are found in Australia."
- While it is true that many marsupials, including kangaroos, are found in Australia, this geographical fact does not define them as marsupials.
- **Option D**: "Deshu Uterine Contraction, Gestation."
- This option does not accurately describe a characteristic of marsupials and is therefore incorrect.

3. **Conclusion**: Based on the evaluation of the options, the correct answer is that kangaroos are marsupials because "the females have a marsupial pouch."

**Final Answer**: Kangaroos are marsupials because the females have a marsupial pouch.

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