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 additional words.
Options:
a) COc1ccc(CC(C)N(C)C(=O)Cn2nc(-c3ccccc3)ccc2=O)cc1OC
b) CCOCCC(=O)OCC
c) CO[Si](CCCNCCN)(OC)OC
d) COc1ccc(-c2noc(CC(=O)O)c2-c2ccc(OC)cc2)cc1
e) ClCC1(CCl)COC1
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}