Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any additional words.
Options:
[a] CC1(COCC2(C)CO2)CO1
[b] CN(Sc1ccc([N+](=O)[O-])cc1)C(=O)Oc1cccc2c1OC(C)(C)C2
[c] CCC(CC)COCCO
[d] NC1CC1
[e] C1COCCOCCNCCOCCOCCN1
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}