Final answer:
Complete independence in transfers from bed to wheelchair means the person can move between the bed and wheelchair without a sliding board or any assistance, which is best represented by a standing pivot with no use of a sliding board.
Step-by-step explanation:
In the context of Health, complete independence in transfers from bed to wheelchair implies that no assistive devices or help from another person are required during the transfer process. The most correct option given is (b) Standing pivot with no sliding board, which signifies that the person can move from the bed to the wheelchair and vice versa by standing and pivoting on their own, without the need for a sliding board or any assistance. Options involving the use of a sliding board, whether with or without assistance, and those requiring assistance for standing pivot, do not represent complete independence.