A timeline must include dates.
pictures.
definitions.
paragraphs. please hurry its timed its edge

dates.

Explanation:

The timeline should always include dates.

It is the display, often in graphic form, of the chronological events, meaning they are presented in the order in which they happened. Besides every event, there should be a clear date or a year when the event has happened.

Timelines are useful for realizing the complete sequence of events, putting historical things into context, and memorizing key years and dates. It provides a clear cut scheme of the way things have developed and happened.

hey,

i hope you are having a wonderful day

the correct answer is :

{b.}   ( american workers lose job opportunities )

hope this : )

    -sprinkles

if you have to make a general question and respond to your thoughts, then this isn't really a question someone can you on. read the passage, form your question, and answer using your thoughts. no one else can understand how you interpreted this text if you don't tell us.