Final answer:
The gross and fine motor skills of a 2.5-year-old include climbing stairs one foot per step, handling fine motor tasks such as building block towers and feeding themselves, with the potential to start using scissors and undressing with help.
Step-by-step explanation:
The gross and fine motor skills typically seen in a 2.5-year-old toddler include climbing stairs with one foot per step and managing small objects. At this age, children can handle fine motor skills such as doing simple puzzles, building a tower of blocks (up to six blocks high), using a spoon well enough to feed themselves, and possibly undressing with assistance. Their gross motor skills have developed enough for them to walk sideways, backwards, run, and climb stairs while holding on to a rail or someone's hand. Therefore, the most accurate activities for a 2.5-year-old from the given options are: a) Climbing stairs and using scissors, since they are starting to handle fine motor tasks like using utensils and could likely start learning to use scissors with guidance