Among the registration fees listed, which one is most expensive for nonresidents?

The most expensive registration fee for nonresidents is related to nonresident ATVs, particularly for non-club members. This is due to the higher demand and usage associated with ATVs in New Hampshire, which often comes with a higher registration cost for those who are not affiliated with a local club. Nonmembers generally face higher fees compared to club members, as clubs often offer discounted rates to encourage membership and retention.

In the case of trail bikes, while there may be fees for both club members and non-club members, the ATV registration fees for nonresidents typically reflect a greater expense. This reflects the state's regulatory framework aimed at managing outdoor recreation effectively, as ATVs contribute significantly to wear and potential environmental impact on trails.

Thus, the correct choice demonstrates an understanding of the regulatory fees and the strategic pricing differences that incentivize club membership for residents and nonresidents alike.