Fat sources in our diet should be low in .
a. oleic acid
b. saturated fats
c. monounsaturated fats
d. polyunsaturated fats
e. unsaturated fats

This is a time line from 685 to 978

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.

C) they are specialized meaning they are designed to do different things