Question. Context: Starting in 2004, the chain began offering "Hot-N-Ready", a large pepperoni pizza sold for $5. The concept was successful enough to become a permanent fixture of the chain, and Little Caesars' business model has shifted to focus more on carryout.

Question: when did little caesars start hot n ready?
Answer. 2004
What step-by-step reasoning justifies that answer?
Reasoning: The relevant sentence in the passage is: Starting in 2004, the chain began offering "Hot-N-Ready", a large pepperoni pizza sold for $5.