A set of 50 wedding photographs, each between 1.8 and 2.5 megabytes in size, is to be sent digitally to guests by ordinary post. If A is the maximum storage space required, B is a suitable medium and C is a valid reason for choosing the medium, then (A, B, C) is
A125 megabytes, CD or low-capacity flash memory, good for mailing and inexpensive to buy ✓ Correct
B90 megabytes, CD or low-capacity flash memory, good for mailing and inexpensive to buy
C125 megabytes, hard disk, inexpensive to buy
D90 megabytes, SSD, good for mailing
Correct answer: (A) 125 megabytes, CD or low-capacity flash memory, good for mailing and inexpensive to buy
Explanation
The maximum space is 50 photographs times 2.5 MB each, giving 125 megabytes.
A CD or low-capacity flash memory suits this size and is easy to post and cheap to buy.
The 90-megabyte figures understate the maximum, which must use the largest 2.5 MB size.
A hard disk is bulky, fragile in the post and not an inexpensive small medium.
An SSD would work but is costlier than a CD or basic flash drive for this purpose.
Maximum storage is estimated using the largest possible file size across all items.
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