Which of the Following Is NOT True of Positron Emission

Multiple Choice

Which of the following is NOT true of positron emission tomography?

A) It involves the use of isotopes with half-lives of minutes to hours.
B) It allows a researcher to measure a variety of biological activities in the brain.
C) It is capable of showing the distribution of various neurotransmitters within the brain.
D) It produces a static image of the brain's anatomy, as do CAT scans and MRIs.
E) It involves the injection or inhalation of radioisotopes.