Any advice on how I should consider dual-licences? For example, I use the DataTables jQuery plugin. I would be willing to pay for a licence but I have no idea how to interpret their disclaimer:

>DataTables is dual licensed under the GPL v2 license or a BSD (3-point) license.

Does this mean I pick one to use? I'm having a hard time accepting/realizing that there is one product with my choice in licences.