To define an appropriate domain for the problem, we need to consider the context given: Annabel bakes the banana bread 5 days after returning from the market.
Since \( t \) represents the number of days after Annabel returns with the bananas, the suitable values for \( t \) would range from the day she returns (0 days) up to the day she bakes the bread (5 days).
Thus, the appropriate domain for \( t \) is:
\[ 0 \leq t \leq 5 \]
Therefore, the correct response is:
0 ≤ t ≤ 5