A Dialogue Question

Lydia:

-Why is it that some languages are harder to learn than others when their native speakers can learn them so easily?

Brian:

-It's because every language family has a quite different approach to expressing the world.

Lydia:

- ...........................................................................

Brian:

- That's right. But instead, all learners are made to learn through universal methods.

A- There are obviously other factors involved when learning a foreign language

B- So, a good teaching method should be based on emphasizing these differences

C- That doesn't explain why most Americans fail to learn Spanish despite so many similarities

D- Does it mean we need to come up with a universal method of teaching a foreign language

E- Even so, the best way to learn it is to go to the country where it is spoken as the mother tongue.

My answer is E?