Final answer:
c) Aunt Eller advises Will to take care of Ado Annie in the musical 'Oklahoma!'. This reflects the musical's focus on everyday people and genuine relationships.
Step-by-step explanation:
In the musical Oklahoma!, it is c) Aunt Eller who advises Will to take care of his love interest, Ado Annie. This piece of advice reflects the focus of the musical on everyday people and relationships, rather than the extravagant shows typical of the era.
The creative team's approach to Oklahoma! was innovative for multiple reasons, as they cast unknown actors based on talent rather than star power, granted director Rouben Mamoulian unprecedented control, and opened the show with an unconventional and intimate scene with Aunt Eller, setting the tone for a groundbreaking production.