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) C1CCC(NC2CCCCC2)CC1
(b) CCOC1c2ccccc2C(=O)N(C)c2ccccc21
(c) COCc1ccc(COC(=O)C2C(C=C(C)C)C2(C)C)cc1
(d) C1CCSC1
(e) CCSc1nc(NC(C)C)nc(NC(C)C)n1
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}