Which type of bore are lead cable borers known to attack?

Lead cable borers are specifically known to attack lead sheathing around any material. This involves the use of their specialized mouthparts to penetrate the lead covering, allowing them access to the materials beneath. Their adaptation to boring through lead sheathing is significant, as it provides both a food source and shelter for the larvae.

While option B suggests that they attack maple and other hardwoods, this is generally not correct as lead cable borers are more famously associated with lead sheathing rather than specific types of wood. In contrast, the other options either misidentify the material being attacked or are too limited in scope to accurately represent the behavior of lead cable borers. Thus, the focus on lead sheathing as the principal target of these pests emphasizes their unique ecological niche and the risks they pose to infrastructure that utilizes lead sheathing for protection.