Carl Is on Trial for the Murder of Donna, His

Carl is on trial for the murder of Donna, his wife. The police have discovered the following facts:
· Carl filed a police report stating that Donna had been abducted by three armed men. The report was filed two weeks after Donna was allegedly abducted.
· Carl is an experienced cement mason who pours cement and does finishing work on concrete floors and sidewalks.
· Carl has been having an affair with Eve.
· Donna's body was found concealed under an elaborate patio with a cement floor Which of the following can be used as circumstantial evidence of guilt?

A) Carl filed a false police report about Donna's abduction.
B) Carl was an experienced cement mason.
C) Carl had an affair with Eve.
D) Donna's body was found under a cement patio floor.