Young Mathias responds to his mother's question, "Good morning, honey. How did you sleep?" by repeating what she says instead of answering her question. He responds in a similar manner to other questions as well. This form of language disturbance is called:

echolalia

Explanation:

Echolalia is a psychological condition in which a person repeats the sentence or phrase which he hears.  It leads to ineffective communication because one struggles to express his thoughts.

This condition can be seen in child up to age of two to there years who are still learning to communicate. They try to learn speech by repeating the sentence they hear.  

In the problem stated above Mathias is repeating whatever he is hearing from his mother instead of answring it. Thus , this phenomenon can be explained by term Echolalia.

A) By using the fable genre in his more modern era, Twain creates humor.

Explanation:

I just took the test.