Best for what exactly ! Who you marry, live with or have intercourse with is not goverened by blood group !
Blood types do not affect marriage. All blood types can marry.
yes
It would be a good combination.
If a boy with blood group A positive marries a girl with blood group A negative, their offspring may inherit one A allele from each parent. This means the child could have blood group A, which poses no health risks. However, if the child inherits the Rh factor from the father (positive) and the mother (negative), the child might have Rh incompatibility if the mother's blood enters the baby's bloodstream, which can lead to health issues in future pregnancies.
you can marry anyone you want
yes
Yes
Yes
no
Blood types do not affect marriage. All blood types can marry.
yes
It would be a good combination.
see a doctor for such questions
yes
yes
see a doctor for such questions
yes.