Step 1: Calculate the total size of ten photographs in megabytes (MB). Step 2: Convert the total size from megabytes (MB) to kilobytes (KB).

✅ Correct.

The solution correctly calculates the total size of ten photographs by multiplying the size of one photograph (2 MB) by the number of photographs (10), resulting in 20 MB. It then accurately converts this total from megabytes to kilobytes using the conversion factor $1 \text{ MB} = 1024 \text{ KB}$, yielding $20 \times 1024 = 20480 \text{ KB}$.