A set of photographs has been taken for a wedding. All the guests are to be sent digitally stored copies through the ordinary postal service. There are 50 photographs and each photograph is between 1.8 and 2.5 megabytes in size. If 'A' represents the maximum storage space required for a set of photographs, 'B' represents a suitable medium to use for the copies to be sent to the guests, and 'C' represents a valid reason for choosing a medium, then ('A', 'B', 'C') = _________. 

The correct answer is: ('A', 'B', 'C') = (125 megabytes, CD/Low capacity flash memory, Good for mailing/inexpensive to buy).
Important Points

'A': The maximum storage space required for a set of photographs is 125 megabytes.

• This is determined by taking the maximum size of each photograph (2.5 megabytes) and multiplying it by the total number of photographs (50).

'B': A suitable medium to use for the copies to be sent to the guests is a CD or low capacity flash memory.

• Both options have the capacity to store the 125 megabytes of data required for the set of photographs.

'C': The valid reason for choosing this medium is that it is good for mailing and inexpensive to buy.

• CDs or low capacity flash memory can be easily mailed to the guests, making it a convenient option for distributing the photographs.
• Additionally, CDs and low capacity flash memory tend to be affordable, which makes them a cost-effective choice for sending the copies to multiple guests.

Therefore, the correct answer is ('A', 'B', 'C') = (125 megabytes, CD/Low capacity flash memory, Good for mailing/inexpensive to buy).