Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
[a] OC(CCl)CN1CCCN(CC(O)CCl)c2ccccc21
[b] Cc1c(-c2ccccc2)[nH]c(N)nc1=O
[c] CS(=O)(=O)OC(CCN1CCCCC1)(c1ccccc1)c1ccccc1
[d] O=C1C2CC3C1C1(Cl)C(Cl)C4(Cl)C2C3C1(Cl)C4(Cl)Cl
[e] CCCCC1(COC(=O)CCC(=O)O)C(=O)N(c2ccccc2)N(c2ccccc2)C1=O
Answer: e
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}