Looking at the given pedigree:
IV-1 and IV-2: unaffected parents → V-3 affected child (1/4)
IV-5 and IV-6: affected parents → V-5 to V-8 affected children (4/4)
In the accompanying figure, the chance that individual III-2 is a heterozygous carrier is ________.
A) 100 %
B) 50 %
C) 25 %
D) 0 %
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