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) CCOc1ccc(F)cc1C(CN(C)C)C(C)CC
b) COc1ccc(N)cc1OC
c) CCCCC(CC)COC(=O)c1ccccc1C(=O)OCC(CC)CCCC
d) CCNC(=O)C(C)OC(=O)Nc1ccccc1
e) NCCOCNc1ccccc1
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}