The correct answers are a) ii and b) i.
Austria’s livestock population data for cattle are almost identical to FAO data, while for sheep and swine the differences are -0.7% and 3.8%, respectively.
Greece’s data reported in the CRF are 5.6 percent lower for cattle, 0.8% higher for sheep, and 1.4% higher for swine.
Luxemburg’s data reported in the CRF are higher than FAO data for all three species. For cattle, the difference is smallest (less than 1%) while for sheep and swine, the difference is 28.2% and 10.2%, respectively.
The difference between New Zealand’s CRF data and FAO data for cattle and sheep is smaller that 1%. For swine, the difference is 5.4%
Slovakia’s CRF data are exactly the same as FAO data.
Ukraine’s reported data are smaller than FAO data. For cattle by 10.9%, for sheep by 2.2% and for swine by 13.2%.
You should remember, though, that differences with FAO data do not necessarily indicate a real problem with a Party’s inventory, as the problem may lie with FAO data instead. However, differences are worthy of further investigation and questions for a Party, in particular with regard to its institutional arrangements for data collection.