; or (2) fix the maximum sentence of imprisonment to be served by the defendant, in which event the court may specify that the defendant may be released on parole at such time as the Commission may determine. (c) Additional information (1) In general If the court desires more detailed information as a basis for determining the sentence to be imposed, the court may commit the defendant to the custody of the Attorney General, which commitment shall be deemed to be for the maximum sentence of imprisonment prescribed by law, for a study as described in subsection (d). (2) Report and recommendations of Director Not later than 3 months after a defendant is committed under paragraph (1), unless the court grants additional time, not to exceed 3 months, for further study, the results of the study described in subsection (d), together with any recommendations which the Director believes would be helpful in determining the disposition of the case, shall be furnished to the court. (3) Sentencing after additional information After receiving a report and recommendations under paragraph (2), the court may in its discretion— (A) place the offender on probation in accordance with subchapter A; or (B) (i) (I) affirm the sentence of imprisonment originally deemed to be imposed; or (II) reduce the sentence of imprisonment