Which option lists a valid mapping for the dataset?

• A. Month maps to y; Now maps to n
• B. Month maps to m; Now maps to n
• C. Month maps to m; Now maps to y
• D. Now maps to n; Year maps to y

Answer: (B)

Think of the mapping as translating each field name to its simplest shorthand. Month should be represented by m, and Now by n, since those are the natural initials for those fields. This makes the pair Month maps to m and Now maps to n the correct, consistent mapping for the dataset.

The other options mix up those letters or try to include Year, which isn’t part of the two-field mapping in this scenario, or omit Month entirely. So they don’t align with the actual fields and their intuitive abbreviations.