Sustainable use of forests in the United States would likely be encouraged by cutting small groups of medium - and large - sized trees in uneven-aged forests A. clear-cutting old-growth forests to allow for secondary succession B. allowing road building in wilderness areas so that older, clear-cut forests have time to regenerate C. logging on steep slopes in designated wilderness areas D. enforcing all provisions of the Resource Conservation and Recovery Act (RCRA)

Sustainable use of forests in the United States would likely be encouraged by cutting small groups of medium and large-sized trees in uneven-aged forests.

Explanation:

The forests that are unevenly aged can be deemed to be extensions of the larger forests that have grown later in time due to phenomena like dispersal of seeds. Hence, by cutting only the trees that are unevenly aged, it could be ensured that the trees that form groups of similarly aged trees get to thrive and bring a balance in the system.