Final answer:
The option to change the size of a Word document can be found under the Layout tab.
Step-by-step explanation:
The option to change the size of a Word document can be found under the Layout tab. To resize the document to fit on an index card, Esme can adjust the page size by selecting the Size option and entering the dimensions she needs. For example, she can set the page size to 3 inches by 5 inches to match the size of an index card.
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