Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any other words.
Options:
(a) COc1cc(C(=O)N2CCCCCCC2)cc(OC)c1OC
(b) c1ccsc1
(c) NC(=O)Cc1c([O-])on[n+]1Cc1ccccc1
(d) CCCCCCCCCCCCCCCC(=O)OCC(O)C1OC(=O)C(O)=C1O
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}