Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any additional words.
Options:
(a) CC(C)CC(C)OC(=O)C=CC(=O)OC(C)CC(C)C
(b) O=S(=O)(C(Cl)(Cl)Cl)C(Cl)(Cl)Cl
(c) O=[N+]([O-])c1ccc(NS(=O)(=O)c2ccc(Cl)c(C(F)(F)F)c2)c(Cl)c1
(d) COc1ccccc1N1CCN(CCCNc2cc(=O)n(C)c(=O)n2C)CC1
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}