Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
a: CC(C)c1cccc(OC(=O)N(C)C(=O)CCl)c1
b: Nc1ccc(F)cc1
c: CCOC(C1=NCC(OC)CN1)c1ccccc1
d: CC(=O)Oc1ccc(Br)cc1C(=O)O
e: COCC(=O)N(C)C(=O)Oc1ccccc1OC(C)C
Answer: e
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}