Which of these crosses will only produce heterazygous offspring?
A) [tex]A A \times A a r[/tex]
B) [tex]\mathrm{Aa} \times \mathrm{Aar}[/tex]
C) [tex]A A \times a a[/tex]
D) [tex]a a \times a a[/tex]
E) [tex]A a \times a a[/tex]