Answer:
The answer is option D.
Step-by-step explanation:
While doing abdominal area practice schedule, exhaustion of target muscles can be securely achieved within the brief time period of around 1.5 minutes (the time period for anaerobic pathways) by basically performing 8 to 12 repetitions at a moderate development speed.Speed is insensible of heading. Then again, speed is a vector amount; it is course mindful.