| A | Electric bulb | 1 | James watt |
| B | Telephone | 2 | Marconi |
| C | Engine | 3 | Edison |
| D | Radio | 4 | Graham Bell |
A) A-2; B-1; C-4; D-3
B) A-1; B-3; C-4; D-2
C) A-2; B-4; C-1; b-3
D) A-3; B-4; C-1; D-2
Correct Answer: D
You need to login to perform this action.
You will be redirected in
3 sec
