Read the passage then choose the best answer (A, B, C or D) to each question.

Experts think that it is a good idea for children to learn not just one, but two foreign languages. They say that learning two foreign languages develops children's minds and increases their knowledge of other culture. The experts also believe that the two foreign languages children learn should be completely different from one another, for example, English and Chinese, or French and Japanese. In addition, they say that children should start to learn foreign languages as early as possible, from the age of about six.

The experts believe that the two foreign languages children learn should be ________ from one another.