Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
a) O=C1C2CC=CCC2C(=O)N1SC(Cl)(Cl)C(Cl)Cl
b) O=C(C=Cc1ccccc1)OCC=Cc1ccccc1
c) SCc1cnccn1
d) C1CC2OC2CC1C1CO1
e) Fc1ccc(C(c2ccccc2)(c2ccccc2F)n2ccnc2)cc1
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}