Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, or c without using any additional words.
Options:
(a) CN1CCC23c4c5ccc(O)c4OC2C(O)C=CC3C1C5
(b) COC(=O)C1CCc2cc(C3CCCCC3)ccc21
(c) CC(c1ccc(Cl)c(Cl)c1)N1N=C(N)CC1=O
Answer: c
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}