challenge: What was the outcome of the investigation into Carlo M. Croce's alleged misconduct at Ohio State University (OSU)?
  
  A. Croce was cleared of misconduct, but the investigation raised concerns about conflicts of interest
  B. Croce was found guilty of misconduct and lost his research funding
  C. Croce was cleared of misconduct, but his lab was shut down as a precautionary measure
  D. The investigation was ongoing and no conclusion was reached
  Answer: 