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) [O-][n+]1c2c([n+]([O-])c3ccccc31)CCCC2
(b) CCC1C(c2ccccc2)=CCC(C(=O)O)C1C
(c) C=C[Si](OCC)(OCC)OCC
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}