Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any additional words.
Options:
a.) CCc1ccc(C)cc1O
b.) Oc1cccc(Oc2ccccc2)c1
c.) CN(C)c1ccccc1CS(=O)c1nc2ccccc2[nH]1
d.) CN(C)P(=O)(OC=C(Cl)Cl)c1ccc(Cl)cc1
e.) CCCCOC(=O)COC(=O)COc1ccc(Cl)cc1Cl
Answer: b
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}