What does the method hasDuplicatesInRows check in a two-dimensional array?

• A. For duplicate values across entire columns
• B. For duplicate elements within each row
• C. For duplicate entries in the entire array
• D. For empty rows

Answer: (B)

The method hasDuplicatesInRows is designed to assess whether there are duplicate elements within each individual row of a two-dimensional array. The focus is on examining the elements contained in each row independently to determine if any values are repeated. This means that for each row, the method will check if there are any instances where the same value appears more than once.

This approach is distinct from checking for duplicates across columns, which would involve comparing values vertically rather than horizontally. It also does not consider duplicates across the entire array, as it limits its scope to individual rows. Lastly, checking for empty rows would only examine the presence or absence of rows without any elements, which is a different type of assessment not related to duplicates. Therefore, the method effectively narrows down its checks to ensuring each row contains unique values.