What should the fire team leader consider when employing the M-203 grenade launcher?

The choice that highlights the importance of considering the overall fire plan and sectors of fire is correct because it reflects a comprehensive understanding of how to effectively integrate the M-203 grenade launcher into a unit's operations. The fire team leader must ensure that the use of the grenade launcher complements the team's overall strategy, coordinating its use to avoid friendly fire incidents and to maximize the impact on enemy forces.

Considering the fire plan allows the leader to determine how the M-203 fits into the larger context of the operation, including identifying priority targets and establishing lanes of fire to ensure effective engagement with enemy positions. This also involves proper communication with other fire team members to ensure that all personnel are aware of where the grenade launcher will be employed and how it affects supporting fires.

Additionally, assessing the sectors of fire ensures that the team maintains effective coverage of the battlefield, enabling them to respond to threats from different directions while utilizing the unique capabilities of the M-203. By referencing the overall fire plan and sectors of fire, the fire team leader can ensure cohesive and coordinated actions, ultimately contributing to mission success.