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] CCN(C(=O)N(CC)c1ccccc1)c1ccccc1
[b] CCP(=S)(OC)Sc1ccc(C)cc1
[c] CC(C)=C1C(=O)N(c2ccccc2)N(c2ccccc2)C1=O
[d] CCP(=S)(OC)Sc1ccc(Cl)c(C)c1
[e] CC(=O)CCc1ccccc1
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}