Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are not sure, you must pick either a, b, or c without using any other words.
Options:
a) CC1(C)C2CC=C(CCO)C1C2
b) O=c1n(CCCN2CCN(c3cccc(Cl)c3)CC2)nc2ccccn12
c) CCCCC1C(=O)NC(=O)N(C2CCCCC2)C1=O
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}