Correct option is D
The above information can be represented as
Branch/Year | 2015 | 2016 |
B5 | 26 | 20 |
B4 | 34 | 36 |
B3 | 20 | 28 |
B2 | 25 | 40 |
B1 | 36 | 30 |
from the above table we can say that:
Number of wireless keyboards of branch B1 in (2015) = Number of wireless keyboards of branch B4 in (2016)
Hence, option (d) is the correct answer.









