Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any additional words.
Options:
a.) CCCCC(CC)COC(=O)CCCCC(=O)OCC(CC)CCCC
b.) c1ccc2sc(SNC3CCCCC3)nc2c1
c.) O=NN1CCCCCC1
d.) O=[N+]([O-])c1ccc(Nc2ccc(O)cc2)c([N+](=O)[O-])c1
e.) CCCCC(C)(C)C(O)C=CC1C(C)CC(=O)C1CC=CCCCC(=O)O
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}