Row A: sep. intercep, sep slope vs. com intercep, com slope

Row A is not used in the selection of the Stability model.

It summarizes the variance indicated by both the batch and interaction term together.

Row A is a sum of these two effects with the MS, F, and P values based on these sums. These effects together represent the use of separate intercepts and separate slopes.

If these two effects (assuming them together as a unit) are not in the model, only Time/Months is a predictor. Row A represents the amount of variance explained by including both Batch and Batch*Time effects in the model instead of having Time only as a predictor.