Answer:
A). The number of contrives in Europe.
Explanation:
The key difference in six and seven-continent model is that the former is taught in Europe, Japan, and Russia while the latter model is preached in the United States, Asia, United Kingdom, and Australia. In the six-continent model, South America and North America are merged into one section named 'America' while the seven-continent model denotes them separately. Thus, option A is the correct answer.
