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.) CCCn1c(=O)c2c(ncn2CCCCC(C)O)n(C)c1=O
b.) COC(C1=NCCCN1)c1ccc2ccccc2c1
c.) O=C=NC1CCC(CC2CCC(N=C=O)CC2)CC1
d.) CC(C(=O)O)c1ccc2c(c1)OCc1ccccc1C2=O
e.) SCc1cnccn1
Answer: e
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}