1. 8305. Exposure to and/or storage near which of the fol lowing is considered harmful to aircraft tires? 1. Low humidity. 2. Fuel. 3. Oil. 4. Ozone. 5. Helium. 6. Electrical equipment. 7. Hydraulic fluid. 8. Solvents. A. 2, 3, 4, 5, 6, 7, 8. B. 1, 2, 3, 5, 7, 8. C. 2, 3, 4, 6, 7, 8