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, or d without using any other words.
Options:
a. CC(C)Cc1ccc(C(C)C(=O)OCc2ccccn2)cc1
b. CN(C)CCCN1c2ccccc2CCc2ccc(Cl)cc21
c. O=C(NC1CC1)OCC(O)C1COc2ccccc2O1
d. C=C1CCC2CC1C2(C)C
Answer: c
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}