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) COP(=S)(OC)Oc1ccc(S(=O)(=O)c2ccc(OP(=S)(OC)OC)cc2)cc1
(b) CCCC1OCSC1=NOC(=O)NC
(c) C=C(Cl)C(Cl)=C(Cl)Cl
(d) COCC1CS1
Answer: d
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}