For the situations below, please choose one sampling method that you find the most appropriate. Please explain the method and justify your choice. [4 marks]

a) Examination of the quality of cans with cat food on a production line in a factory.

b) Examination of math skills of Grade 3 students in primary schools in the UAE.

c) Examination of patients with a rare type of cancer disease.

d) Evaluation of opinions of experts on the introduction of VAT in UAE.