Shown below is a section of a polymer and a number of potential monomer units. The polymer is a combination of which monomer units:

To determine the potential monomer units that combine to form the given polymer structure, I would need to analyze the chemical structure of the polymer provided in the image (or text). This can be done through visual inspection for recognizable patterns, functional groups, and repeating units that correspond to the given monomer options.

Analysis Steps

1. Identify Structural Features: Look for key functional groups and repeating units in the polymer. This can include double bonds, ester groups, amine groups, etc.

2. List Potential Monomers: Write down the characteristics of the potential monomer units provided, focusing on identifying how each might fit into the overall structure of the polymer.

3. Matching Monomers to Polymer: Match the identified features of the polymer with the functional groups and structures of the monomer options.

4. Combining Monomer Information: If specific connections or arrangements are observed in the polymer, indicate how selected monomers can seamlessly connect to each other, maintaining the structural integrity of the polymer chain.

5. Summarize Findings: Conclude which monomer units contribute to the formation of the polymer and provide a rationale for your selections based on structural compatibility.

Without the actual polymer representation and potential monomers, the analysis must remain general. Please provide the specifics of the polymer and monomer units for a more precise determination.