<prompt> Safety pin appearance is shown by-a Hemophilus ducreyib Chlamydiac Donovani granulomatisd Mycoplasmaaacadb  <response>: Bipolar staining safety pin appearance Some bacteria display a safety pin appearance due to the accumulation of dye at the poles of the cells.This characteristic is called bipolar staining.Bacteria showing bipolar staining are-Calymmatobacter granulomatis Donovani granulomatisPseudomonas malleiPseudomonas pseudomallei Vibrio parahemolyticusYersinia pestisH.ducreyi 