Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
a.) CN(CCCn1cnc2c1c(=O)n(C)c(=O)n2C)c1ccccc1
b.) c1ccsc1
c.) c1ccc(Nc2cccc3ccccc23)cc1
d.) O=C=NCCOC(=O)C1C2C=CC(C2)C1C(=O)OCCN=C=O
e.) CC(C)OC(=O)C(O)(c1ccc(Cl)cc1)c1ccc(Cl)cc1
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}