Question

What is true about royalty-free images?

They are free to use and do not require a license
They can only be used for a short period of time
They are exclusive images
The user has to pay a one-time fee for their use

Answer 1

The user has to pay a one-time fee for their use.
Once an initial cost is payed, the user will be able to use the images for free, without fear of consequence or fee.

Answer 2

I believe the answer is: The user has to pay a one-time fee for their use

Royalty refers to the amount of money that an individual or an organization must pay every time they use a license or franchise that they do not own. In royalty free images, the right to use the image would be given in unlimited form as soon as one initial payment is made upfront.