Answer:
The correct answer is "Transitional words"
Step-by-step explanation:
Transitional words are parts of speech that help link sentences and paragraphs.
The objective of transtional words is to add cohesion to a text since they allow the reader to understand how ideas are connected and related.
In this case, the words "Second, meanwhile, and to summarize" are useful in writting as they help build coherent relationship between ideas.