I believe the answer is the first one you listed,
Hope this helps..
Answer:
The Rf values indicate how soluble the particular pigment is in the solvent by how high the pigment moves on the paper.
Explanation:
The Rf values indicate how soluble the particular pigment is in the solvent by how high the pigment moves on the paper. Small Rf values tend to indicate larger, less soluble pigments while the highly soluble pigments have an Rf value near to one.
I'm guessing the answer would be protein because I know meat falls in the protein category in which ice cream would have a lesser quantity
Hope this helped!
If less is the only option then go with that like your question suggests but more feels like a better answer
