Arundhati opens up his presentation with his two takeaway messages and a statement that frames them both in appealing terms. What did he forget to include in the preview of his presentation?

Answer: Attention-getter

Explanation:

Attention-getter is defined hook that attracts the reader in magnetic way so their attention is towards the presentation. It is written as the first sentence of the presentation or essay. It can grabs the focus on viewers and audience towards the content of presentation and they are open to hearing and knowing more about it.

According to the question, Arundhati did not include attention-getter in his presentation preview. He might face some negligence of audience towards the presentation as preview has no eye catching sentence which can attract audience's focus even if appealing terms are included.

Thus, audience might not be completely hooked in the presentation as preview is not much exciting and attractive to them.