Answer:
a. At lower levels, management have fewer controllable costs
Explanation:
The opposite is true, lower-level management have more controllabe costs than higher level management because top management focuses on the general strategy of the firm, while lower management focuses on the specific production processes.
It is in these specific production processes that many controllable costs arise. A production line supervisor (part of lower-level management) can directly control some variable costs such as energy used, amount of input, or even work hours.