Parallelism I’m pretty sure because it’s talking about the same things, which is how they felt.
Answer: The sequence signal word that appears within the sentences is B. first.
Explanation: Signal words are used to connect the ideas presented in one or more sentences. Moreover, they can establish different relationships between ideas. For example, <u>signal words can be used to indicate sequence, that is to say to show that some events take place before others. </u>In the passage provided, the sequence signal word that appears within sentences is "first" since <u>it shows that there is an order of events</u>. In other words, "first" indicates that Chen decided to wash her hands before doing something else (eating).