A 40 years old male presents to his physician with maculopapular rashes on his palm and soles, low grade fever, malaise, anorexia, weight loss, headache and myalgias. Examination reveals generalized lymphadenopathy.On further questioning he gives a history of non tender ulcer in his groin regions 2 months prior to his present symptoms what is the most likely organism responsible:
Select one of the following: