Difference between A charitable gift aid donation and donations under the gift a

Hello, I come up with a question in ACCA study hub Which TWO of the following items of expenditure are deductible in the calculation of an individual’s taxable income? a A contribution into a personal pension scheme b A charitable gift aid donation c A contribution into an employer’s occupational pension scheme d A charitable donation made under the payroll deduction scheme The correct answer is c&d. However I am wondering what is a charitable gift aid donation? I kind of feel it's another way of saying donations under the gift aid scheme? Thank you very much.