Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, or c without using any additional words.
Options:
(a) C#CCN1CCC2=C(C1)c1c(O)cc(C(C)C(C)CCCCC)cc1OC2(C)C
(b) OC1CCCc2ccccc21
(c) CCOC(=O)c1cnc2n(c1=O)C(C)CCC2
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}