Vivek, 33 yrs, presents with complaints of weakness in right upper and both lower limbs of last 4 months.He developed digital infarcts involving 2nd and 3rd fingers on right side and 5th finger on left side.On examination,BP was 160/136mm Hg,all peripheral pulses were palpable and there was asymmetrical neuropathy.Investigations showed a Hb 12gm, TLC/12000 Cu mm,Platelets 4,00,000,ESR-49mm.Urine examination showed proteinuria and RBC-10-16/hpf with no casts.Which of the following is the most likely diagnosis?

• A. Wegener's granulomatosis.
• B. Mixed cryoglobulemia.
• C. Polyarteritis nodosa.
• D. Systemic lupus erythematosus.