Dear
We have developed several multiple choice tests like these in the past. For your project, I can provide 4 different tests for the 4 test categories required, which are 16 tests in total. I'm charging $75 per test (but opened for negotiation). Our team also retain the copyright of all these tests, and you can freely publish them with no concern.
If you're interested, I can send you a few sample questions for further reference. All the tests will be delivered via PDF in one big zip file. I require 10 business days for this project because I need to contact all my past teammates (4 of them) for their agreement before delivering the tests.
Please contact me here any time on Freelancer if you're interested in my offer, or if you have any other suggestions.
Thank you very much
Long