9. Rank long term risks associated with EOR storage: 1) caprock integrity; 2) micro-seismicity (earthquake); 3) fresh groundwater contamination; 4) loss of production. (1%) а) 1, 2, 3, 4 b)

2, 3, 4, 1 с) 1, 3, 4, 2 d) 4, 3, 2, 1