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, c, or d without using any additional words.
Options:
(a) CN(C)C(=S)SSC(=S)N(C)C
(b) O=C1NCCN1c1ncc([N+](=O)[O-])s1
(c) O=C(O)CCC(=O)c1ccc2oc3ccccc3c2c1
(d) CNC(=O)ON=C1CSC(C)(C)S1
Answer: b
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}