When must the pre-trial conference occur in relation to the adjudicatory hearing?

The pre-trial conference must occur no less than 10 days prior to the adjudicatory hearing. This is because it gives parties enough time to prepare and gather evidence that may be presented during the hearing. Option A (not less than 5 days prior) may not provide enough time for proper preparation, while option C (on the same day) would not allow for sufficient time to address any issues that may arise during the conference. Option D (not less than 20 days prior) is simply incorrect as it provides an even longer time period than necessary.