In which of the following the cranial capacity is minimum?

Options

A. Australopithecus
B. Cro-Magnon man
C. Peking man
D. Gibbon

Answer

To determine which of the following has the minimum cranial capacity, we will analyze the cranial capacities of each option provided:

1. **Australopithecus**: The cranial capacity of Australopithecus ranges from approximately 375 to 550 cubic centimeters (cc).

2. **Cro-Magnon man**: The Cro-Magnon man, which is an early modern human, has a cranial capacity of about 1600 cc.

3. **Peking man**: The Peking man has an average cranial capacity of about 1000 cc, with some individual skulls approaching 1300 cc.

4. **Gibbon**: The cranial capacity of a gibbon is approximately 98 cc.

Now, comparing the cranial capacities:
- Australopithecus: 375 - 550 cc
- Cro-Magnon man: 1600 cc
- Peking man: 1000 cc
- Gibbon: 98 cc

From this comparison, it is clear that the gibbon has the smallest cranial capacity at 98 cc.

Therefore, the answer to the question is **Gibbon**.