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, d, or e without using any other words.
Options:
(a) CC1(C)CN(c2ccccc2)NC1=O
(b) CS(=O)(=O)Nc1ccc([N+](=O)[O-])cc1Oc1ccccc1
(c) Cc1cc(C(=O)c2ccccc2)ccc1N
(d) COC(=O)c1cc(C(=O)OC)cc([N+](=O)[O-])c1
(e) C1CC2OC2C1OC1CCC2OC12
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}