(a)Correction of sentence. The Court may correct an illegal sentence at any time and may correct a sentence imposed in an illegal manner within the time provided herein for the reduction of sentence.(b)Reduction of sentence. The Court may reduce a sentence of imprisonment on a motion made within 90 days after the sentence is imposed. This period shall not be interrupted or extended by an appeal, except that a motion may be made within 90 days of the imposition of sentence after remand for a new trial or for resentencing. The Court will consider an application made thereafter only in extraordinary circumstances or pursuant to 11 Del. C. ยง 4217. The Court will not consider repetitive requests for reduction of sentence. The Court may suspend the costs or fine, or reduce the fine or term or conditions of partial confinement or probation, at any time. A motion for reduction of sentence will be considered without presentation, hearing or argument unless otherwise ordered by the Court.(c)Correction of sentence by sentencing court. The Court, acting within 7 days after the imposition of sentence, may correct a sentence that was imposed as a result of arithmetical, technical, or other clear error.