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: CC(=O)CC(=O)Nc1ccccc1Cl
b: ClCc1ccc(CCl)cc1
c: CCOP(=O)(OCC)SCSc1cc(Cl)ccc1Cl
d: COP(=S)(OC)Oc1ccc(Cl)c([N+](=O)[O-])c1
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}