Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any additional words.
Options:
a: CCCCCCCCc1ccc(-c2ccc(C#N)cc2)cc1
b: CC(C)(c1ccc(OCC2CO2)cc1)c1ccc(OCC2CO2)cc1
c: CS(=O)(=O)N(CCI)CCI
d: CNC(=O)OC(C)(C)C1CC=C(C)CC1
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}