The big fear behind b) is that health insurers might accurately assess your risk.
I have no fear behind d). They have my height weight hair and eye color and fingerprints from my time in the US military. They know that any sample of my DNA is me, because I am in the database.
If they really want to amplify and sequence my entire genome to find that I am a white guy (they knew that), that I am over average in height and intelligence (they knew that), and have a risk adverse and non novelty seeking personality (they probably don't know that, but I see little risk in someone having the potential to find out).
But if you feel I have “glossed over” the inherent risks and fears behind an interested party using DNA information to identify biological samples (a), identifying genetic risks (b), telling who is related to you (c), or getting a detailed map of your genotype (d); please expound upon them at your leisure.