Answer:
Option A, where Sarah experiences nervous anxiety while waiting to make her entrance.
Step-by-step explanation:
Option B, in which Colton wins the 100-yard wheelchair race by demonstrating stubbornness and determination, does not represent anxiety.
Rather than demonstrating restlessness or anxiety, Mr. Park greets customers at Option C with a smile, a friendly and welcoming manner.
Rosa estimates amounts rather than using exact measurements in Option D, which suggests a different method of baking rather than anxiety.
Therefore, Option A is the accurate choice.