Answer the following question given this paragraph: 

Uncontrolled diabetes may damage capillaries of nephrons. As a result, the kidneys lose much of their ability to filter blood. This is called kidney failure . The only cure for kidney failure is a kidney transplant, but it can be treated with dialysis. Dialysis is a medical procedure in which blood is filtered through a machine (see Figure below ).


Q: What is a popular treatment for kidney failure?

 Choices:

- psychotherapy

- metastasis

- electrolysis

- dialysis

A:
dialysis
