Final answer:
The correct option is b). Ming, a PMA-certified Pilates Teacher, conducts group sessions with uniform routines when teaching Mat work to twelve clients. This allows for a structured environment where each client follows the same set of exercises, as opposed to individually customized sessions.
Step-by-step explanation:
The best description of Ming, a PMA-Certified Pilates Teacher, as she teaches Mat work to a group of twelve clients, would be b) Group sessions with uniform routines. The term 'group sessions' typically implies that multiple individuals are being instructed together. When teaching to a group, routines are often designed to cater to general fitness levels and goals, which means they tend to be uniform to ensure everyone in the session can participate. It is less likely that the routines would be individually customized in a group setting because this would require separate routines for each participant, counter to the group format. Ming would be providing instruction and corrections to the group as a whole, although she may give occasional individual guidance within the session's context.
A personal trainer devising a weight-lifting program would be focused on tracking progress and adjusting the program as necessary. The trainer records the actual maximum weights lifted versus expected weights, thereby gauging the effectiveness of the program and ensuring that it meets the individual needs and capabilities of each client within the structure of the program.