Which visual aid would most effectively support the speaker argument ?

B. A timeline of important dates in the program's history
In the speech, 1 shall be able to summarize the argument in the single declarative sentence. some people will be able to follow a more complex argument, and the danger of confusing the audience far outweighs the advantage of presenting more sophisticated & complex argument.
The speaker can then support the claim by providing the following evidence, “Research from the US Department of the Transportation has found that texting when driving creates the crash risk that is 23 times worse than driving while not distracted.” The warrant is the underlying justification that connects claim & the evidence.
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