Final answer:
The painter should use stencil two for her project because it offers more flexibility in creating different designs through rigid transformations.
Step-by-step explanation:
The painter should use stencil two for her project.
In terms of rigid transformations, stencil two would be a better choice because it offers more flexibility in creating different designs. Stencil one may have fewer options and may not provide the desired level of abstractness that the artist is looking for.
By using stencil two, the painter can easily rotate, reflect, or translate the stencil to create various abstract patterns on her project.