Final answer:
The competitive stroke rate in rowing cadence workouts, excluding U2, is typically B) 30-36 strokes per minute, as this rate balances power and endurance needed for racing.
Step-by-step explanation:
In rowing cadence workouts, a competitive stroke rate typically does not include the range of 40-45 strokes per minute. Stroke rates that are considered competitive are usually lower, to allow for a balance of power and endurance over the course of the race. Therefore, the correct answer to which stroke rate is typically competitive in rowing, except for U2, is B) 30-36 strokes per minute. This rate allows the rower to maintain a strong, steady pace without overexerting, which is crucial during competitive events. Rates such as A) 22-28 strokes per minute might be used during steady-state or endurance training, while C) 40-45 strokes per minute and D) 50-55 strokes per minute are unusually high and would be unsustainable for the majority of rowers during a standard competitive event.