Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, or c without using any other words.
Options:
a: CCCOC(=O)C1c2cc3c(cc2CC(C)C1C(=O)OCCC)OCO3
b: OC(c1ccccc1)(c1ccccc1)C1CCCCN1
c: CN(SSC(C)(C)C)C(=O)ON=C1SCCS1
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}