Final answer:
A drip edge is designed to protect the fascia, siding, and roof edge by directing water into the gutter, rather than stopping ice damming, protecting ridge vents, or preventing cupping of shingles. Therefore , the correct answer options is b)
Step-by-step explanation:
A drip edge is an important component in roofing that serves several key functions. Its primary role is to protect the parts below it like the fascia, siding, and the edge of the roof decking. It is designed to direct water away from the fascia and into the gutter, preventing water from seeping under the roofing materials and causing damage.
Although not directly responsible for stopping ice damming or protecting ridge vents, the drip edge helps to prevent water from backflowing under the shingles, which can ultimately lead to harmful ice damming and deterioration of roofing materials.
Moreover, while it doesn't prevent cupping of shingles, which is caused by other factors such as poor attic ventilation or defective shingles, it does provide an added measure of protection against the elements by ensuring that runoff is efficiently channeled away from roof components.