Which is more readable? A or B

A:
    val configItemFuture: EitherT[Future, Errors, ConfigItem[Value]] =
      for {
        items <- check().liftM[ErrorsOrT]
        item <- EitherT(requireConfig(name, items).point[Future])
        _ <- EitherT(verifyChangeNeed(item).point[Future])
      } yield item

B:

      val configItemFuture: EitherT[Future, Errors, ConfigItem[Value]] =
       EitherT {
         for (items <- check()) yield for {
           item <- requireConfig(name, items)
           _ <- verifyChangeNeed(item)
         } yield item
       }