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, d, or e without using any other words.
Options:
a CC1(C)COC1=O
b CN(SSN(C)C(=O)ON=C1CSCCS1)C(=O)ON=C1CSCCS1
c CCCC(=O)OC(=C(Cl)Cl)P(=O)(OC)OC
d CC(C)C1NC(=O)c2ccccc2O1
e CCC12CCCN3CCc4c(n(c5ccccc45)C(O)(C(=O)OC)C1)C32
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}