The stimulus tells us that a crew of up to five workers will install the partition.
This rule means that each one of these workers on the crew of up to five workers must complete at least one task during the installation.
For example, if our crew is Inga, Kelly, Leanda, and Olaf, then each of these workers must complete at least one task. It cannot be true that Kelly, Inga, and Olaf do all the work and leave no tasks for Leanda to complete.
Hope this helps! Please let us know if you need further clarification or have any more questions.
