Which of these apes is smaller in size ?

Options

A. Gibbon
B. Orangutan
C. Chimpanzee
D. Gorilla

Answer

To determine which of the listed apes is the smallest in size, we can analyze the size ranges of each ape mentioned in the question.

### Step-by-Step Solution:

1. **Identify the Apes**: The question provides four types of apes: Gibbon, Orangutan, Chimpanzee, and Gorilla.

2. **Size of Gibbon**:
- Gibbons are relatively small apes. Their size can range from approximately 46 cm to 58 cm.

3. **Size of Orangutan**:
- Orangutans are much larger than gibbons, with sizes ranging from 1.2 meters to 1.4 meters (120 cm to 140 cm).

4. **Size of Chimpanzee**:
- Chimpanzees are also larger than gibbons, with sizes ranging from 63 cm to 94 cm.

5. **Size of Gorilla**:
- Gorillas are the largest among the apes mentioned, with sizes reaching up to 1.6 meters (160 cm).

6. **Comparison of Sizes**:
- Gibbon: 46 cm to 58 cm
- Orangutan: 120 cm to 140 cm
- Chimpanzee: 63 cm to 94 cm
- Gorilla: Up to 160 cm

7. **Conclusion**:
- Based on the size comparisons, the Gibbon is the smallest ape among the options provided.

### Final Answer:
The smallest ape in size is **Gibbon** (Option 1).

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