ANSWER:
A person would mostly see 'small rodents' like hedgehogs and rats in "Central portions of Europe" due to considerable farming.
Step-by-step explanation:
- Central Europe is one of the major food producers of the world. Extensive farming is practiced in Central Europe and therefore small rodents can be spotted in this region.
- A wide variety of food crops are grown in 'Central Europe' like barley, buckwheat, hops etc.
- The presence of rodents is common in areas where farming is practiced on a 'significant scale' and therefore in Central Europe, one can find rats and hedgehogs usually on the fields.