Batch of cells labeled as A: In the hypoxic condition, the amount of dosage required is 3 Gy but in oxygenic condition, the amount of dosage needed is 2. Batch of cells labeled as B: In hypoxic condition, the amount of dosage required is 30 Gy but in oxygenic conditions, the amount of dosage needed is 10.

• A. nFrom the above information, what conclusions can be drawn?
• B. Batch A is not cancerous
• C. Batch B has a higher OER
• D. Batch A has a higher OER
• E. Batch B is cancerous