Which of the Following Patterns of Manual Wheelchair Propulsion Are

Which of the following patterns of manual wheelchair propulsion are recommended for a person with T12 ASIA A paraplegia?

A) Initiate the propulsive phase at top-dead center (at 12 o'clock) on the pushrim.Hands should be lifted above the top of the pushrim during the recovery phase.
B) Initiate the propulsive phase behind top-dead center (at 10 o'clock) on the pushrim.Hands should be lifted above the top of the pushrim during the recovery phase.
C) Initiate the propulsive phase at top-dead center (at 12 o'clock) on the pushrim.Hands should be kept below the top of the pushrim during the recovery phase.
D) Initiate the propulsive phase behind top-dead center (at 10 o'clock) on the pushrim.Hands should be kept below the top of the pushrim during the recovery phase.