Which root-and-verbal-noun pair is correct?

The Four Unaugmented and Augmented Quadriliteral Patterns

• q-sh-ʿ-r — tasarbul
• s-r-b-l — ibrinshāq
• b-ʿ-th-r — iqshiʿrār
• b-ʿ-th-r — baʿtharah