What did Harry and Hermione learn from Rita Skeeter's book?

A) Dumbledore had been friends with the dark wizard Grindelwand.

B) Dumbledore was actuually a descendant of Salazar Slytherin.

C) Tom Riddle Sr. had confined his fears about his son to Dumbledore.

D) The Dumbledores had lived in Little Hangleton when Voldermort lived there.