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 other words.
Options:
a CNC(=O)Oc1cccc2ccoc12
b CC1CC(C=O)CC(C)(C)C1
c CN(C)CCC(c1ccc(Cl)cc1)c1ccccn1
d CC1=CC(=O)c2c(O)cccc2C1=O
e CN(C)[SiH](N(C)C)N(C)C
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}