Which of the following is true of a suspect?

a. A suspect is seeking attention or is delusional and thinks he or she did commit the crime.
b. A suspect is vaguely associated with a crime and decides to take complete responsibility.
c. A suspect is a vulnerable person who comes to believe that he or she committed the crime.
d. A suspect knows he or she is innocent but decides that it is in his or her best interests to confess to the crime.