Answer:
clusters of round shape bacteria
Step-by-step explanation:
Microscopic examination of the potato salad should reveal clusters of round shape bacterium.
Staphylococcus or Staphylococcal are those that are round in shape (from the word 'coccus') and occur in clusters as opposed to individually or in chains. The word is derived from two Greek words - staphyle which means bunch of grapes and kokkos which means to be round.
Hence, when a magnified image of the Staphylococcus aureus is produced by the microscope, clusters of round shape bacteria would be seen.