Programming human concentration human contains a brain that has several thought areas. awareness is defined by understanding (focusing) of a thought area; and concentration is defined focusing your awareness into a thought area for a longer duration of time. using object oriented design, program this concept to demonstrate concentration.

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What is the primary difference between the header section of a document and the body? a. the body is displayed on the webpage and the header is not. b. the header is displayed on the webpage and the body is not. c. the tag for the body is self-closing, but the tags for the headers must be closed. d. the tag for the header is self closing, but the tag for the body must be closed.