user
Two all beef patties, special sauce, lettuce and cheese in a sesame seed bun
A: bigmac
B: sauce espagnole
C: cheddar cheese
D: echinacea
E: bittersweet
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

A

<|end_of_solution|>