In this problem, we need to define a domain for \( t \), which represents the number of days after Annabel returned from the market. Since she bakes the banana bread 5 days after returning, we are interested in the time frame from when she returned (day 0) up to the day she bakes (day 5).
The appropriate domain for \( t \) is:
\[ 0 \leq t \leq 5 \]
Thus, the correct response is:
0 ≤ t ≤ 5