Final answer:
The correct word to fill in the blank is 'commotion,' referencing a state of noisy disturbance, often associated with crowds waiting eagerly for an event like a sale.
Step-by-step explanation:
There was such a commotion outside the store waiting for the sale to begin that we decided to shop on another day. The word 'commotion' refers to a state of confused and noisy disturbance, which aligns with an environment where a crowd is eagerly anticipating a sale. This is opposed to a 'queue' which implies an orderly line, 'protest' which suggests a demonstration against something, and 'jubilation' which implies a joyful celebration.