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, or c without using any other words.
Options:
a.) CCOP(=O)(OCC)ON=C(C1CC1)C1CC1
b.) CNc1cccc2ccccc12
c.) CCOC(=O)CCN(Cc1ccccc1)SN(C)C(=O)ON=C(C)SC
Answer: b
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}