"Assistance" means help or support. It's when someone helps you do something you might find difficult on your own. For instance, if you're struggling to tie your shoelaces, and your older sister does it for you, she is giving you 'assistance'. It can also mean the help given by people or things. Like when you're learning to swim and you use arm bands, they are giving you 'assistance' to stay afloat.
Which of these examples is the odd one out?
With the assistance of his trusty compass, the explorer was able to make his way through the dense forest
He gave her every assistance by ignoring her when she asked for help
The elderly lady was offered assistance by a kind stranger to carry her groceries up the stairs
In her new math class, Emily found it necessary to ask for the teacher's assistance to understand the more complex problems
During the science fair, the young boy needed his father's assistance to complete his project
