He goes from being almost immobile to playing energetically with his friends.
The answer is c because it says in my engish book that the sentence will start with: AS , WHILE , AS LONG , ALTHOUGH , UNLESS , WHEN , AFTER , AS , IF , EVENTHOUGH
Here's one
<span>He fell down because he is clumsy (internal attribution). I fell down because the furniture was haphazardly arranged (external attribution).</span>
