Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any other words.
Options:
a.) Cc1cc(=NC(=O)c2ccccc2O)n(C)n1C
b.) O=C(C=Cc1ccccc1)OCc1ccccc1
c.) C=CCn1c(=O)c2[nH]c(C)nc2n(CC(C)C)c1=O
d.) C1C2CC3OC3C2CC2OC12
Answer: d
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}