Speaking to parents and children, a principal repeats a speech, ...

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Speaking to parents and children, a principal repeats a speech, first at a high level for parents and then at a simple level for children. She displays
 
  a. lexical contrast constraint.
  b. mutual exclusivity constraint.
  c. sociolinguistic awareness.
  d. a holophrastic naming explosion.

Question 2

Most of the characteristics of interest to psychologists, such as personality, are influenced by
 
  a. multiple genes.
  b. the 23rd chromosome pair.
  c. one autosome.
  d. the 21st chromosome pair.

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Answer to Question 1

C

Answer to Question 2

A

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