Answer:
D. chooses its output to manipulate the follower to produce the output that most benefits the leader.
Step-by-step explanation:
Strackelberg model is one where a market leader makes the first move and then the other followers firms follow sequentially.
For this model to be successful, the followers need to observe the leader and follow their lead in a production process or venture.
The market leader usually has an advantage that enables it make the first move.
For example a firm that has a monopoly in a market leads while new entrants follow.
In this model the market leader chooses an output and manipulates the followers to produce the same output, and this benefits the leader