This is a loose connective tissue. The EF refers to elastic fibers. The C refers to cartilage and N refers to nucleus.
Note: the line tool did not work while doing annotating this image.
Histo-Tips: To memorize all the classes of antibodies: \”If you’ve got IgG, you’ve got it MADE!\” IgG, IgM, IgA, IgD, IgE.