Study the following table:
|
Fuel |
Calorific value |
State |
Ignition temp. |
|
A |
High |
Solid |
High |
|
B |
Moderate |
Gas |
High |
|
C |
Moderate |
Gas |
Moderate |
|
D |
Low |
liquid |
Low |
Which is best suited as domestic fuel?
1
C
2
D
3
A
4
B