Internal database information

Q:One of the most common problems with using internal databses information is:
1. It lacks the detail required to be truely useful
2. It is usually expensive to retrieve
3. Top executives are usually unwilling to relinquish data to colleagues
4. The information contained in the databse has not been maintained and is therefore out of date.

Which one is correct?

A:

One of the most common problems with using internal databses information is it is usually expensive to retrieve.

Meaning: It is very hard to accept internal databses information because it is very expensive to buy it!!!

Reason: This answer is fitter than any other answer so i think this is correct

(I'm not 100% sure so also listen to other people's answer!!!
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I'm very sorry
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!!!

Hope I can help you!!!
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