Final answer:
Adjoining panels in roof or floor sheathing can be connected using H-clips to provide support and eliminate the need for tongue-and-groove sheathing with 'a. H-clips' as the correct answer.
Step-by-step explanation:
To eliminate the need for tongue-and-groove sheathing in roof or floor sheathing applications, the correct way to connect adjoining panels is with H-clips. These clips are an effective alternative and provide the necessary support at the seams where the panels meet. They are placed between panels along the edges that are supported by the roof trusses or floor joists, preventing the edges from sagging or moving over time.
The correct answer to the presented question is a. H-clips. D-brackets, T-connectors, and L-supports do not serve the same purpose in sheathing applications and therefore would not be a suitable alternative for tongue-and-groove sheathing.