Answer:
D) Tassia just ran a long race, so she's not interested in taking a walk right now
Step-by-step explanation:
In the first given sentence, the word so is used as a conversation opener, and we can not extract more info from it. In the second and the third one, the word so is used as a degree adverb, where his role is to intensify the meaning of tall and cute. And, finally, in the fourth sentence, we have the wanted role of the word so, where it shows a cause and effects the relationship ( cause - she ran a long race and she is tired, effect relationship - she is not interested in taking a walk, because she is tired due the race).