What happend to Carrie in Dollanganger Series?

Question

In the Virgina Andrews Dollanganger series starting with flowers in the attic, I know the following books focused on Cathy and Chris, and Cory dies in the first book, but what happened to Carrie the remaining twin?

Answer 1

She lives with Cathy, Chris and a doctor that took them in for a long time. Then Cathy moves out and Carrie goes with her.

She ends up committing suicide when she's about 20. She eats doughnuts with rat poison on them so that she can die the same way Cory did.

Answer 2

Carrie secretly poisons herself with aresenic on donuts, the same way her twin brother was killed.