Q: Fact 1: Touch can be used for detecting texture. Fact 2: When the hand touches the cup, touching. Given the two facts above, what is used to detect texture?

pick from the following.
1). spoon;
2). vision;
3). colors;
4). dog;
5). stick;
6). Sight;
7). fibers;
8). hand;
The answer is:
8).