[单选题]
Sickle cell anaemia is caused by a re2lw 2(cq cb7l. fe/sbxcessive allele)c-lfm yu6 x(m (Hb$^S$). The dominant allele is Hb$^A$. This image shows the inheritance of sickle cell anaemia in a family.
What are the genotypes for individuals 1 and 7?
A. Individual 1 is Hn$^A$Hb$^S$; Individual 7 is Hn$^S$Hb$^S$
B. Individual 1 is Hn$^A$Hb$^S$; Individual 7 is Hn$^A$Hb$^S$
C. Individual 1 is Hn$^A$Hb$^A$; Individual 7 is Hn$^A$Hb$^S$
D. Individual 1 is Hn$^A$Hb$^A$; Individual 7 is Hn$^S$Hb$^S$
