Case Ib

Rule 1(b):
A monopolar solute will partition similarly (i.e., partition coefficients vary by less than a factor 3) to all apolar phases and monopolar phases of the same polarity because only vdW interactions are involved in the cavity formation as well as in the interactions between solute and solvent. (The data shown below for partitioning into decane are exceptions from this rule.)

monopolar molecules in
monopolar phases of the same
polarity and in apolar phases:

only van-der-Waals
interactions