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: CON=C(C)C(=NOC(=O)N(C)SN(C)C(=O)Oc1cccc2c1OC(C)(C)C2)C(=O)N(C)C
b: O=NN1CC=CCO1
c: FC1(F)CC(C2CC3(Cl)C(Cl)=C(Cl)C2(Cl)C3(Cl)Cl)C1(F)F
d: OCC(CO)(CCl)CCl
e: Nc1nc2cc(Cl)c(O)cc2o1
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}