The children visited the science museum
The answer is B, because it's part of a sentence, but is dependent on the main clause to work in a sentence( it doesn't work alone, but all the others do)
Vera killed herself in her room. After killing Lombard, she
went into her room and there was a rope hanging from the ceiling and a chair
under it. She stood on the chair and hanged herself. She was the only one in
the island left after all the other guests on the island were murdered/died.
She wasn’t murdered but she killed herself of her own volition because she felt
guilty of the death of Cyril, the little boy who she once babysat.