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 other words.
Options:
a: O=c1[nH]c2c(Cl)c(Cl)cc(Cl)c2o1
b: CCC(O)(COC(N)=O)c1ccccc1
c: CC(C)CCCCCc1ccc(O)cc1
d: CCCCOCN(C(=O)CCl)c1c(CC)cccc1CC
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}