Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any additional words.
Options:
a: O=C(O)CCC(=O)OCC1COC(C(Cl)(Cl)Cl)O1
b: CC(C)(C)c1cc(Br)c2nc(C(F)(F)F)[nH]c2c1
c: CON(C(=O)CSP(=S)(OC)OC)C(C)C
d: Cc1nnc(-c2ccccc2)c(=O)n1N
e: Cc1occc(=O)c1O
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}