Final answer:
The overlooked key question for promotion in the scenario is identifying the most effective ways to reach the target market, as advertising Star Wars toys late at night and during NHL games does not align with the younger audience. Therefore, the correct option is D.
Step-by-step explanation:
In the provided scenario, where Star Wars toys are advertised after the 11 p.m. news and during National Hockey League games, the key question for promotion that was most likely missed is D. What are the most effective ways to reach the target market? The timing and choice of programming for the advertisements do not seem to align with the typical audience for Star Wars toys, which would likely be younger viewers. Advertising after 11 p.m. and during NHL games may not effectively reach the intended demographic, which is crucial for the success of the promotion.