under the exclusionary rule, which statement is true?

(a) Evidence must be excluded from trial if the search warrant is defective, even if the police believed at the time of the search that it was valid.

(b) The prosecution cannot use any evidence the police found at the site of the illegal search, but it can use any evidence the police discover elsewhere as a result of the illegal search.

(c) Any statements a defendant makes after the arrest are inadmissible if the police do not read him his Miranda rights.

(d) If a conviction is overturned because of the exclusionary rule, the prosecution is not allowed to retry the defendant.