[单选题]
The pupil of a person's eye changes from a diametg o))9ir4/ yteh agsd.er of dlk 1z8n;dk)gf9/x 3j,;3ptafgf k ag 3.5 mm to 1.5 mm as the idt 9kdpj )k8fk;3xna ,z g1l3ga/fgf;llumination is increased. By what factor does the minimum angle of resolution change?
