Why is this the answer?

The answer is hands because this riddle is very clever, asking you to think about three different things your body does, and the answer to all of them is your hands. Let us look at the three parts of the riddle one by one to see how your hands fit all the clues. The first part of the riddle says "hoe a row." A hoe is a long tool that farmers and gardeners use to dig in the dirt. When you want to plant flowers or vegetables, you use a hoe to make a straight line, which is called a row, in the soil. How do you hold this gardening tool? You must grab it tightly with your hands, of course! Your hands are what you use to hold the handle and move the hoe through the dirt to make that perfect row. That is the first clue solved. Next, the riddle says "slay a foe." A "foe" is an old word for an enemy or someone you might have to defeat. "Slay" just means to defeat or strike down. If you were a brave hero in a story, you would use your hands to hold a sword or a magic wand to fight the villain. Even when you are playing outside, you use your hands to push a friend in a friendly wrestling match or throw a ball to win a game. Your hands are always the part of you that takes action to "slay a foe." That is the second clue. The last and most difficult part is "wring with woe." "Woe" is another way to say you are feeling very sad, worried, or troubled. When people are extremely nervous or upset, they sometimes "wring" their hands. This means they twist and squeeze their hands together very tightly. It is a physical way to show how stressed they are feeling inside. Think of it like squeezing a wet towel, but with your own hands to show your big feelings. Because your hands are the tool you use to grip a hoe and make a row, the part of your body that helps you fight a foe, and the way you express big, sad feelings by wringing them when you feel woe, the answer to all three secret clues is your hands. They are powerful, expressive, and useful for so many different things every day, from work to expressing your feelings.