Narrower spans of control are expected when $\_\_\_\_\_\_\_\_\_\_.$

Option A

tasks are complex, when subordinates are inexperienced or poorly trained, or when tasks call for team effort.

Option B

tasks are straightforward, when subordinates are experienced, or when tasks call primarily for individual effort.

Option C

tasks are straightforward, when subordinates are inexperienced or poorly trained, or when tasks call for team effort.

Option D

tasks are complex, when subordinates are experienced, and when tasks call for team effort.

Option E

tasks are complex, when subordinates are inexperienced or poorly trained, or when tasks call primarily for individual effort.