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. CC(CN1C(=O)N(CC2CO2)C(C)(C)C1=O)OCC1CO1
b. O=C(O)c1ccc2ccccc2c1
c. COP(=S)(OC)Oc1ccc(C#N)c(C)c1
d. COP(=S)(OC)Oc1ccc(S(C)=O)c(C)c1
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}