Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any additional words.
Options:
[a] O=Cc1ccc2c(c1)OCO2
[b] CCCCCN(CCCCC)N=O
[c] CCCCOC(=O)C1OC1C
[d] O=[N+]([O-])C(F)(COCOCC(F)([N+](=O)[O-])[N+](=O)[O-])[N+](=O)[O-]
[e] CN1CCCC(n2nc(Cc3ccc(Cl)cc3)c3ccccc3c2=O)CC1
Answer: a
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}