"Resident Evil - Code: Veronica" Quiz

Answer:

"Resident Evil Code: Veronica" storyline follows Claire Redfield's search for her brother Chris Redfield. During her search, Claire ends up at a remote prison island called Rockfort Island which is owned by Umbrella. She then meets a fellow inmate, Steve Burnside, after a T-Virus outbreak and they decide to escape from the prison. They end up at an Antarctic base where Claire finds her brother Chris fighting Albert Wesker and Alexia Ashford, who has mutated into a monster. Eventually, both Claire and Chris escape while the facility self-destructs.

Here is a little info on the characters that do appear in this release of "Resident Evil":
Claire Redfield is Chris Redfield's sister, often gets involved in outbreaks while searching for her brother.
Leon S. Kennedy is a rookie cop turned government agent, first appearing in Raccoon City.
Chris Redfield is a highly skilled soldier, founding member of the BSAA (Bioterrorism Security Assessment Alliance).
Albert Wesker is a scientist and S.T.A.R.S. leader, obsessed with viruses.
Steve Burnside is the teenage prisoner on Rockfort Island that Claire Redfield partners with to escape.
Alfred Ashford is a commander of Umbrella Corporation's Rockfort Island (which was turned into a prison) and he is a major antagonist in the series.
Alfred sister, Alexia Ashford, is a scientist that developed the powerful T-Veronica Virus.
Rodrigo Juan Raval is an Umbrella Corporation security officer who captures and later frees Claire Redfield from Rockfort Island prison.
Nosferatu and T-078 are the names of villains in this release.

As for the incorrect choices, all of those characters appeared in different "Resident Evil" releases. Marguerite Baker is a major antagonist "Resident Evil 7: Biohazard" while Mia Winters is the wife of Ethan Winters and also appeared in "Resident Evil 7: Biohazard". Clancy Jarvis is a cameraman in "Resident Evil 7: Biohazard", where he investigates the mysterious Baker family estate. Jill Valentine is a elite member of the Special Tactics And Rescue Service (S.T.A.R.S.) and co-founder of the BSAA with Chris. Jill appeared is several releases but not "Code Veronica". Claudia Beneviento is a deceased child from "Resident Evil Village" and Donna Beneviento's sister.