The system for selling cinema tickets calculates the discount type based on the client’s birth year (BY) and on the current year (CY) as follows: Let D be the difference between CY and BY, that is, D = CY – BY. If D < 0 then print the error message “birth year cannot be greater than current year” If 0 ≤ D < 18 then apply the student discount If 18 ≤ D < 65 then apply no discount If D ≥ 65 then apply the pensioner discount Your test suite already contains two test cases: BY = 1990, CY = 2020, expected result: no discount BY = 2030, CY = 2029, expected result: print the error message Which TWO of the following test data sets should be added to achieve full valid equivalence partitioning coverage for the discount type?
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B, E: BY = 1900, CY = 1965; BY = 2000, CY = 2000