Which of the following tools is essential for performing a basic manicure?

The cuticle nipper is essential for performing a basic manicure as it is specifically designed to trim and manage the cuticles. Proper cuticle care is crucial in manicure procedures to maintain nail health and hygiene, as well as to achieve a neat and polished appearance. By effectively removing excess cuticle tissue, the cuticle nipper helps prevent hangnails and other issues that can arise from overgrown cuticles, which can detract from the overall look of the nails.

While exfoliating scrubs, nail polish removers, and foot baths are beneficial tools or products for other aspects of nail care or pedicure services, they are not fundamental to the basic steps of a manicure. An exfoliating scrub may enhance skin softness but is not necessary for a basic nail treatment. Nail polish remover is used in certain circumstances, particularly when removing polish, but it does not contribute to the fundamental shaping and preparation of nails in a basic manicure. A foot bath is specifically related to pedicure services, making it irrelevant to the requirements of a manicure. Therefore, the cuticle nipper stands out as the most critical tool for this particular procedure.