I believe the answer is D, document object model. Conditional Statements deal with if statements, iterative structures are while and for loops, HTML tags are the tags which help to format and define a webpage, and src attribute deal with specifying external sources for certain tags.
Answer:
A. 50 percent
Explanation:
The correct option is - A. 50 percent
Another preventive measure you can take is to maintain the relative humidity at around 50 percent. Be careful not to increase the humidity too far—to the point where moisture starts to condense on the equipment.
There is your answer:
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