Which of the following is a controlling responsibility of operations managers?Multiple ChoiceCapacityProduct mixCost controlLayout of facilities

The controlling responsibility of operations managers among the options given is Cost control.

Here's why:

1. Capacity: While operations managers do have a role in determining the capacity of production, it is not a controlling responsibility. It is more of a planning and organizing function.

2. Product mix: This is typically a marketing decision, not an operations decision. The operations manager would then plan how to produce the decided product mix.

3. Cost control: This is a controlling responsibility. Operations managers are responsible for controlling costs in production and operations.

4. Layout of facilities: This is more of a planning and organizing function, not a controlling function. The operations manager would plan the layout of facilities to ensure efficient production.

So, the answer is Cost control.