The correct answer is letter A.
I believe they are called track changes. because when you scroll to the top you are able to track the changes to see where things changed. hope this helps.
Answer:
Latency
Explanation:
If the client connection is suboptimal it will create issues with speed
La respuesta a esta pregunta sería, primero tienes que puebo en cinco de mia con A B C y D anon afer a zic.