question: income before tax:income after tax:tax
choices.label: A B C D
choices.text: measured height:true height:error legal regulations:ethics:rules plateau region:plain region:latitude production cost:ex-factory price:selling price
explanation: "income before tax" - "income after-tax" = "tax". "before-tax income" and "after-tax income" and "taxes" can be calculated. "measured height" - "true height" = "error". "measured height" and "true height" and "error" can be calculated. "legal regulations" and "ethics" and "rules" cannot be calculated. the difference between "plateau area" and "plain area" is altitude, not "latitude". "production cost" will affect "ex-factory price" and "sale price", and there is no operational relationship between "production cost" and "ex-factory price" and "sale price".
relation: income before tax income after tax tax R3.10
relation: measured height true height error R3.10