The correct answer is: previous.
A conviction is a formal finding of guilt of a crime. It is usually made by a jury or a judge in a court of law. A person who has been convicted of a crime is said to have a criminal record.
The word “previous” means “coming before in time or order.” In this case, it is being used to describe the fact that Roshan had never been convicted of a crime before. This is important because it means that he is a first-time offender. First-time offenders are often given lighter sentences than people who have been convicted of crimes in the past.
The other options are not as accurate or relevant in this context. The word “past” could be used to describe the time before Roshan was convicted of a crime, but it does not specifically refer to his criminal record. The words “earlier” and “former” could also be used to describe the time before Roshan was convicted of a crime, but they do not specifically refer to his criminal record.
Therefore, the correct answer is “previous.”