Answer:
B. 50%
Step-by-step explanation:
-The are two people involved in the breeding.
-The event of having an anury exists in only one of the two.
-Since probability is defined as the likelihood of an event occuring, this probability is calculated as:
[tex]P(Anury)=\frac{Anury\ Event}{Total \ number \ of \ events}\\\\=\frac{1}{2}\\\\=50\%[/tex]
Hence, the probability is 50%