A. Mark the text with an asterisk.
Explanation:
You can put an asterisk right at the point in the page where you feel the important information is while th<u>e other options are less efficient in that they do not help in retention of information or keeping a track of what was important.</u>
You can mark a page as important but only if you believe the whole page is important not just a line, an asterisk can give specificity to the text which it would need in time of revision.
Claims and support are related because claims are statements that are made by authors in relation to some subject matter that are backed up by "support" or evidence. Therefore, based upon these options, "An author will use support to back up a claim." This claim and support are what authors use to create arguments in writing to make a point and to express a perspective on a particular issue.
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