Final answer:
The unsafe option when using a stand-assist mechanical lift is c. the lift's base is narrow when lifting.
Step-by-step explanation:
The unsafe option when using a stand-assist mechanical lift is c. the lift's base is narrow when lifting.
This is because a narrow base can make the lift less stable and increase the risk of tipping over, especially when lifting heavier individuals.
To ensure safety while using a stand-assist mechanical lift, it is important to have a wide base for stability, hold the lift's hand grips for control, keep the person's feet on the footplate for support, and ensure that the person's knees are against the knee pad for proper body alignment.