Which of the following statements is true?

Which of the following statements is true?
 
  a. Total amnesia concerning childhood trauma is common.
  b. Research evidence indicates that recovered memories are bogus.
  c. False memories lack the personal and specific incidental detail of real events.
  d. Recovered memories often occur following suggestive probing by a therapist or hypnotist.

Question 2

Twins who develop from separate egg cells that were fertilized simultaneously, who
   share 50 of their genetic heritage, are known as ______ twins.
 
  a. monozygotic c. dizygotic
   b. polyzygotic d. azygotic

Question 3

A set of interconnected brain structures that are located below the cerebral cortex and are
   involved in such functions as memory formation and the processing of emotional surprises
   is called the ______.
 
  a. hindbrain c. corpus callosum
   b. limbic system d. reticular activating system