Which of the following is a key to safe transfer of a client?

Using appropriate footwear is crucial for the safe transfer of a client because it enhances both the stability and traction of the caregiver. Safe transfers require a solid and secure stance, which can be compromised if the caregiver is wearing inappropriate or unsafe footwear, such as open-toed shoes or slippery soles. Proper footwear allows the caregiver to maintain balance, reducing the risk of slips or falls during the transfer process. Ensuring that both the caregiver and the client have appropriate footwear can significantly contribute to a smoother and safer transfer experience.

While the presence of a second aide can be beneficial and silence can help in communication, they are not as fundamentally critical as wearing the right shoes to ensure safety. Complaining about a client's weight is neither professional nor helpful in a clinical setting and does not contribute to safe practices during client transfers.