Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any additional words.
Options:
a CCCCCCCCCCc1ccccc1S(=O)(=O)O
b CCCCOCC(O)COc1ccccc1
c COc1ccc2c(c1)N(CC(C)CN(C)C)c1ccccc1S2
d CC(=O)Oc1ccccc1C(N)=O
e O=C(O)c1c(Cl)ccc2cc(Cl)cnc12
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}