Study the given table and answer the question that follows.
The table shows the number of customers for different services in different cities.
|
City → Services ↓ |
X |
Y |
Z |
|
A |
250 |
175 |
350 |
|
B |
220 |
190 |
240 |
|
C |
260 |
200 |
270 |
|
D |
245 |
185 |
330 |
In which service is the average number of customers per city the highest?
1
C
2
A
3
D
4
B