Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any additional words.
Options:
[a] CCCSc1ccc2[nH]c(NC(=O)OC)nc2c1
[b] ClC1=C(Cl)C2(Cl)C3C4C=CC(O4)C3C1(Cl)C2(Cl)Cl
[c] CCOC(=O)C1OC1c1ccccc1
[d] CCCCC(CC)CNCC(CC)CCCC
[e] CC(C)N(C(=O)Cn1nc(-c2ccccc2)ccc1=O)C(C)Cc1ccccc1
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}