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.) S=C1NCCNC(=S)S1
b.) CCCCCCCCCc1cc(C)cc(Cc2cc(C)cc(CCCCCCCCC)c2O)c1O
c.) Cc1ccccc1-n1c(C)nc2ccc(N)cc2c1=O
d.) CCOC(=O)c1cnc2cc(OCC3CC3)c(OCC3CC3)cc2c1O
e.) CN(C)CCOc1ccccc1Cc1ccccc1
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}