Final answer:
The least helpful verbal cue to complete the task of transferring a wheelchair up onto a curb by doing a wheelie is Option C: Place your hands at the 11 o'clock position for initial forward propulsion.
Step-by-step explanation:
The least helpful verbal cue to complete the task of transferring a wheelchair up onto a curb by doing a wheelie is Option C: Place your hands at the 11 o'clock position for initial forward propulsion. This cue is incorrect because placing the hands at the 11 o'clock position will not provide the necessary leverage to propel the wheelchair forward on the curb. Instead, the hands should be positioned closer to the center of the wheels to maintain stability and control during the transfer.