Exchange errors, in which two linguistic units are substituted, ...

[cnetterville]

Exchange errors, in which two linguistic units are substituted, occur
 
  a. in feature comparison theories, but are not consistent with hierarchical networks theories.
  b. so infrequently that their absence is strong evidence for a deep structure of language.
  c. at the same level in the hierarchy, indicating that language is hierarchically organized.
  d. at different levels in the hierarchy indicating that language is sequentially organized.

Question 2

Languages are generative. This means that
 
  a. they evolve gradually through the generations but retain their original morphological structure.
  b. a limited number of words can be recombined according to certain rules in order to create an infinite number of sentences.
  c. they evolve gradually through the generations but retain their original semantic structure.
  d. they evolve gradually through the generations but retain their original syntactic structure.

[sultana.d]

Answer to Question 1

C

Answer to Question 2

B