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 additional words.
Options:
[a] CN1Cc2ccccc2C2CCc3ccccc3C21
[b] COCOCCO
[c] O=C(Cl)CCl
[d] CC(C)COCC(C)O
[e] Cc1ccc2c(c1)CC(=O)c1cc(C(C)C(=O)OCCOCCO)ccc1O2
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}