4.2 The following diagram shows the actual field of view (FOV) of only one cell in Question 4.1 (diagram A).(1,0,μm) Specimen in field of view with a diameter of 2000 micron (micrometer) An estimated 5 specimens fit into the field of view Calculate the estimated size of the specimen of one epithelium cell. Show your working and give the answer in microns (µm).