Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
a: CSC(C)=NOC(=O)N(C)SN(C(C)C)P1(=S)OCC(C)(C)CO1
b: COC(=O)c1ccccc1N=CC(C)Cc1ccc(C(C)(C)C)cc1
c: O=C(CO)c1coc(=O)c2c(O)cccc12
d: CCOC(=O)C(C#N)C(=O)Cc1c(C)n(C(=O)c2ccc(Cl)cc2)c2ccc(OC)cc12
e: O=c1nc2[nH]c(=O)[nH]cc-2[nH]1
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}