B
Bodd
Well if you really can't work it out he can't be her father. They must have a common female ancestor, so she could be his sister, mother, neice etc.
Also she can't be related to the prospective mother cos there would be a MtDNA match.
The MtDNA in the sperm is in the bit which is the motor for the tail. It drops off so never enters the egg...
SUppose you need another question, at the right level?
I was going to say that......