Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
a: CCOC(C)OCC
b: O=C1c2cccc(S(=O)(=O)O)c2C(=O)c2cccc(S(=O)(=O)O)c21
c: CC(C)[N+](=O)[O-]
d: N#CC1(O)CCCCC1
e: COc1coc(CSP(=O)(OC)OC)cc1=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}