Final answer:
The best task aligned with the goal of having students count on is having them count objects in a group and then add more objects to the group, asking them to count on.
Step-by-step explanation:
The task that is best aligned with the goal of having students count on is option C. Having students count objects in a group and then add more objects to the group, asking them to count on.
Counting on is an important skill for kindergarten students to develop as it helps them understand the concept of addition. By counting objects in a group and then adding more objects, students are practicing counting on from a given number. This task allows them to see that the count starts from the number they already counted and continues from there.