Please choose the correct ending to complete the given sentence: Health: [header] How to calculate productivity [title] Determine the country's gross domestic product (gdp). [step] The gdp of a country is the measure of goods and services produced within a specific time period. You'll need that number to calculate productivity based on gdp.

Ending1: Kdp = 8.0.3 kdp = 8.1.33 kdp (the gross domestic products produced within a given time period). This is done through substituting gdp equals. Ending2: [title] Determine the school of taxable income (tax). [step] Gdp is calculated based on who pays taxes and work. Ending3: [substeps] You usually won't have to calculate the number yourself (that would be very difficult). Instead, you can find the number already calculated for you. Ending4: You can determine this by considering the country's gross domestic goods and services. For example, an example of how gdp would operate in a typical business would be based on the oil, gas, and air industry industry.

Answer format: ending1/ending2/ending3/ending4