Identifying syphilis cause, symptom, and treatment

Steps:

• Recall syphilis cause: bacterium Treponema pallidum.
• Note symptoms: include joint pain in secondary or tertiary stages.
• Confirm treatment: antibiotics like penicillin.
• Match options: select row with all three accurate elements.

Why A is correct:

• Syphilis is caused by bacterium Treponema pallidum, features arthralgia (painful joints) as a symptom per medical definitions, and responds to antibiotics as standard treatment.

Why the others are wrong:

• B: Severe headaches occur in neurosyphilis but are not a primary symptom like joint pain.
• C: Syphilis is bacterial, not viral; burning urination suggests gonorrhea.
• D: Cause is bacterial, not viral; "burning infertility urination" is unclear and inaccurate; treatment uses antibiotics, not antibodies.

Final answer: A