What does thing (line 1) refer to? the line:
A twitching thing, it moves as if it were still alive. But it can’t be. The hand isn’t attached to
anything. Sinews, veins and skin dried up, discoloured, dead on the page. Yet it moves as if no
one has told it.

Tia and lin had been best friends since kindergarten. both avid soccer players, the girls decided to try out for the high school team together. unfortunately, there was just one open spot, so only one of the girls would be chosen. they both worked hard, and on tryout day, they did their best. when the team roster came out, lin was excited to see that she had made the team but sad that tia had not. tia was happy for her friend and vowed to work harder so she would make the team the next year. which sentence is the exposition of the passage