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: O=C1CCC(C(=O)NC2CC2c2ccccc2)N1
b: COC(=O)C1C2CC3c4[nH]c5cc(OC)ccc5c4CCN3CC2CC(OC2CCCCO2)C1OC
c: Cc1nc(C)c(C)nc1C
d: CCc1cc2c(cc1C(C)=O)C(C)(C)CCC2(C)C
e: CCNc1nc(NC(C)CC)nc(OC)n1
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}