Allen's test is positive. Which of the following is the most probable diagnosis?

A 35 year old, Jewish male presents with persistent pain in the fingers which worsens after writing for several minutes. The symptoms worsen with cold weather. He admits to a history of smoking 2 packs of cigarettes daily. Examination of the fingers reveals a faint blue hue to the distal digits. Allen’s test is positive. Which of the following is the most probable diagnosis?

A. thromboangiitis obliterans
B. Raynaud’s disease
C. Raynaud’s phenomenon
D. atherosclerosis