Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any additional words.
Options:
a. OC1CCc2ccccc2C1
b. CC1(C)COS(=O)(=O)OC1
c. O=C(C=Cc1ccccc1O)OC(=O)C=Cc1ccccc1O
d. Cc1cnccn1
e. CN1CCN(CCC(=O)NN=Cc2ccc([N+](=O)[O-])o2)CC1
Answer: c
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}