<prompt> Bipolar staining is characteristic of -Yersinia pestisProteus mirabilisPseudomonas aeruginosaAll of the above  <response>: Option a, b, c, d Bipolar staining safety pin appearance: with both ends densely stained and a clear central area of the bacteria. 1. Yersinia pestis 2. Vibrio parahaemolyticus 3. Calymmatobacterium Donovania granulomatis 4. H. Ducreyi 5. Pasteurella multocida 6. Burkholderia species 