Under Section 15T, an appeal to the SAT must be filed within:  

Ans: B (45 days)     Reason:   Section 15T specifies that appeals before the Securities Appellate Tribunal against orders of the Board or Adjudicating Officer must be filed within  45  days from the date of receipt  of the order. This  45 -day period mirrors the timeline for Supreme Court appeals (Section 15Z) and is designed to balance procedural fairness with finality. The consistent use of  45 -day periods across appellate levels reflects Parliament's intentional harmonization of appeal timelines within the SEBI adjudicatory framework.