To determine which number is divisible by 11, we need to check if the sum of the digits in the number alternates between adding and subtracting, and if the result is divisible by 11. Let's analyze each option:

a) 65483:
- The sum of the odd-positioned digits (6 + 4 + 3) is 13.
- The sum of the even-positioned digits (5 + 8) is 13.
- The difference between these sums is 0, which is divisible by 11.
- Therefore, 65483 is divisible by 11.

b) 72493:
- The sum of the odd-positioned digits (7 + 4 + 3) is 14.
- The sum of the even-positioned digits (2 + 9) is 11.
- The difference between these sums is 3, which is not divisible by 11.
- Therefore, 72493 is not divisible by 11.

c) 84527:
- The sum of the odd-positioned digits (8 + 5 + 7) is 20.
- The sum of the even-positioned digits (4 + 2) is 6.
- The difference between these sums is 14, which is not divisible by 11.
- Therefore, 84527 is not divisible by 11.

d) 92056:
- The sum of the odd-positioned digits (9 + 0 + 6) is 15.
- The sum of the even-positioned digits (2 + 5) is 7.
- The difference between these sums is 8, which is not divisible by 11.
- Therefore, 92056 is not divisible by 11.

Hence, the only number divisible by 11 among the given options is 65483 (option A).