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) C#CCOS(=O)OC1CCCCC1Oc1ccc(C(C)(C)C)cc1
b) Oc1ccc2ccccc2c1
c) O=COCCc1ccccc1
d) N#CCCNc1ccccc1
e) CCOP(=S)(OCC)SCc1nnc(SC)s1
Answer: b
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}