All of the following can cause both arterial and venous thrombosis,except:

The condition that typically causes only venous thrombosis and not arterial thrombosis is c. Protein C deficiency.

• APLA syndrome (Antiphospholipid Antibody Syndrome) can cause both arterial and venous thrombosis.
• Hyperhomocysteinemia is associated with both arterial and venous thrombosis.
• Polycythemia vera can lead to both types of thrombosis.

Protein C deficiency mainly predisposes individuals to venous thrombosis.