It is easy to define jazz music, since the music has a set group of characteristics.

That statement is false.

From all genre of music, Jazz music is probably the hardest one to be defined.
In Jazz music, the musician has the ability to improvise on their own accord without following any rules or agreement. This will create some sort of melodic chaos other musicians that play another instrument couldn't keep up with the improvisation.

True to the fact it is actually false

Ithink option a is correct because you cannot donate a different blood group than yours because it won't match.option a says betsy can donate to mark. they have the same blood group so donation can happen.