Find Unknown Substance

Let a substance $X$ react with a just enough amount of $NaOH$ , then leave the product(s) to be completely dry. We gain a solid substance $Y$ and an organic substance $Z$ . Let $Z$ react with $AgNO_3$ and $NH_3$ , we gain another organic substance $T$ . Let $T$ react with $NaOH$ again, we gain the substance $Y$ .

Which of the following can the substance $X$ be?