hydrogen bonding

Hello, Can you some please help me. I'm a little confused. I took general chemistry 10 years ago. I understand why I got the question wrong. However I don't understand why isn't Florine is listed as the most electronegative atom in the periodic table, even though the choices given don't have any...

Im not sure if I'm understanding this question correctly. I though that h-bonding is technically a type of van der waals force because it is just a specific type of dipole-dipole force. This Crack the DAT question says otherwise. If anyone could help me clarify this I would greatly appreciate...