Base your answer to questions 8 through 11 on the following energy efficiencies. (A) 100%

(B) 60%

(C)35%

(D) 10%

(E) 1%

8. Approximate efficiency of today's nuclear power plants
A)D
B)A
C)E
D)C
E)B

9. Approximate efficiency of combined-cycle natural gas electric power plant
A)B
B)E
C)A
D)D
E)C

10.Approximate efficiency of the conversion of gasoline fuel into mechanical energy in a car A)B
B)D
C)C
D)A
E) E

11. The second law of thermodynamics prevents this efficiency from being possible
A)D
B)E
C)A
D)B
E)C

(It’s four questions, if someone could help me it would mean a lot because I’m really stuck and I’m freaking out.)