Read this passage from “the secret garden” carefully. “then mary knew dickon had meant the picture to be a message. he had meant that she might be sure he would keep her secret. her garden was her nest and she was like a missel thrush. oh, how she did like that queer, common boy! ” which theme is best developed by this passage? (a) the secret garden is a place for healing and growing (b) the secret garden is a magical place (c) happiness depends upon others (d) secrets are dangerous