Which is a benefit of row oriented table design?
A. When writing a new row, if all of the row data is supplied at the same time the entire row can be written with a single disk seek
B. When columns of a single row are required at the same time, the entire row can be retrieved with a single disk seek regardless of row size
C. When new values of a column are supplied for all rows at once, that column data can be written efficiently and replace old column data without touching any other columns for the rows
D. When an aggregate needs to be computed over many rows but only a notably smaller subset of all columns of data, reading that smaller subset of data can be faster than reading all data
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