Esther is $83$ years old, lives by herself and is quite independent.$$She relies on the bus and train for transportation, does her own shopping and house cleaning, and does not need assistance to do errands or to attend regular appointments $($ie$,$ at the doctor's office, hair dresser, etc.$).$Esther comes to you for resistance training instruction to maintain her independence.$$You work at a commercial exercise facility with an entire room of ~$15$ different weight machines that have fixed weight amounts $("$plates$")$ that can be adjusted using a pin to set the number of plates to be lifted.$$The facility is heavily used throughout the day.

Given this set up$,$ which of the following could be a barrier to using the weight machines for Esther's program?

Group of answer choices

The number and appearance of machines may seem too complicated for Esther.

All of the responses reflect potential barriers to Esther using the weight machines.

Esther may not feel comfortable learning new weight exercises in a crowded space.

The lowest weight on machines may be too heavy for Esther's initial level of strength.