Suggested but not directly expressed <span />
The word indelibly means <em>not able to be forgotten.
</em>Having this in mind, the best choice would be the word permanently, which has the closest meaning to the word indelibly. <em>
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Answer:
it can tell viewers where to focus their attention
Explanation:
the question asks, what can audio add? All the other answers are negative.
Answer:
With report after report about accidents involving rides -- one that ... up for what could be another busy summer, the issue doesn't appear to be going away. Already, there have been a number of serious events this year.
