GMAT Critical Reasoning (CR) | Re: A team of researchers at a university hospital has developed a chemica

A team of researchers at a university hospital has developed a chemical test that detects breast tumors in the early stages of development. In order to save lives, the researchers want to make the test a routine part of examinations at the hospital. However, a spokesperson for the hospital argued that because virtually all breast tumors are detectable by self-examination, the chemical test would have little impact on the breast cancer death rate.

Which of the following, if true, would most seriously