Cameron is a doctor treating a cancer patient, billy is an archeologist dating a vase, and isabelle is a geologist dating a layer of soil. which isotopes would each person most likely use?

cameron would use carbon-14, billy would use cobalt-60 (which releases gamma rays), and isabelle would use uranium-238.
cameron would use cobalt-60 (which releases gamma rays), billy would use carbon-14, and isabelle would use uranium-238.
cameron would use uranium-238, billy would use carbon-14, and isabelle would use cobalt-60 (which releases gamma rays).
cameron would use cobalt-60 (which releases gamma rays), billy would use uranium-238, and isabelle would use carbon-14.