Final answer:
Gutters should be installed through the fascia and into the rafter tails for secure anchoring to the roof's structure.
Step-by-step explanation:
The question regarding the correct method for installing gutters pertains to the proper attachment to the house's structure. Gutters should be installed through the fascia and into the rafter tails. This method ensures that the gutters are securely anchored to the stronger structural parts of the roof, which can provide better support than the fascia board alone. Proper gutter installation is important to ensure they function correctly, directing water away from the house and preventing potential water damage.