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] O=C1CCCC2C3CC(CN12)C1CCCCN1C3
[b] FC(F)(F)c1nc2c(Br)c(Cl)c(Cl)c(Br)c2[nH]1
[c] CC(=O)OCCO
[d] Nc1ccc(S(=O)(=O)Nc2ccccn2)cc1
[e] [O-][n+]1c2ccccc2nc2ccccc21
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}