Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, or c without using any other words.
Options:
a. CCN(CC)C(=O)c1ccccc1OCCO
b. O=[N+]([O-])c1ccccc1
c. Cc1c(Cc2cc(C(C)(C)C)c(O)c(C(C)(C)C)c2)c(C)c(Cc2cc(C(C)(C)C)c(O)c(C(C)(C)C)c2)c(C)c1Cc1cc(C(C)(C)C)c(O)c(C(C)(C)C)c1
Answer: a
Task: Please answer the multiple choice question.
Question: Which molecule has the highest {acute_toxicity__names__noun}?
Constraint: Even if you are {#uncertain|not sure!}, you must pick either {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%acute_toxicity%}
Answer: {%multiple_choice_result}